CN103838283A - Voltage stabilizing circuit - Google Patents
Voltage stabilizing circuit Download PDFInfo
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- CN103838283A CN103838283A CN201210475339.8A CN201210475339A CN103838283A CN 103838283 A CN103838283 A CN 103838283A CN 201210475339 A CN201210475339 A CN 201210475339A CN 103838283 A CN103838283 A CN 103838283A
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Abstract
The embodiment of the invention discloses a voltage stabilizing circuit. The voltage stabilizing circuit comprises a reference voltage circuit, a comparison circuit and an amplifying circuit. One end of the reference voltage circuit is used for being connected with the ground, and the other end of the reference voltage circuit is connected with the first input end of the amplifying circuit. The first input end of the comparison circuit is connected with the other end of the reference voltage circuit, the second input end of the comparison circuit is connected with the output end of the amplifying circuit, and the output end of the comparison circuit is connected with the second input end of the amplifying circuit. The first input end of the amplifying circuit serves as the input end of the voltage stabilizing circuit. The output end of the amplifying circuit serves as the output end of the voltage stabilizing circuit, and the amplifying circuit is used for adjusting the voltage of an electric signal output by the output end of the amplifying circuit when the output end of the comparison circuit outputs the high electrical level. According to the voltage stabilizing circuit, the voltage difference of the input voltage and the output voltage of the voltage stabilizing circuit can be improved, and then the application range of the voltage stabilizing current can be widened.
Description
Technical field
The present invention relates to circuit field, relate in particular to a kind of mu balanced circuit.
Background technology
The mu balanced circuit of generally using is in the market all the mu balanced circuit that adopts three-terminal voltage-stabilizing pipe to form, but because the voltage difference before input voltage and the output voltage of three-terminal voltage-stabilizing has certain restriction, conventionally this voltage difference is limited to 3-8V, causes like this range of application of mu balanced circuit narrow and small.
Summary of the invention
The embodiment of the present invention provides a kind of mu balanced circuit, can improve the voltage difference of input voltage and the output voltage of mu balanced circuit, thereby can expand the range of application of voltage stabilizing electricity.
In order to solve the problems of the technologies described above, a kind of mu balanced circuit that the embodiment of the present invention provides, comprising: reference voltage circuit, comparator circuit and amplifying circuit, wherein:
Described reference voltage circuit one end is for ground connection, and the described reference voltage circuit other end is connected with the first input end of described amplifying circuit;
The first input end of described comparator circuit is connected with the described other end of described reference voltage circuit, the second input end of described comparator circuit is connected with the output terminal of described amplifying circuit, the output terminal of described comparator circuit is connected with the second input end of described amplifying circuit, described comparator circuit compares for the voltage of electric signal and the voltage of the electric signal that described the second input end obtains that described first input end is obtained, when the voltage of the electric signal that the voltage of the electric signal obtaining when described the second input end obtains lower than described first input end is low, the output terminal output high level signal of described comparator circuit,
The first input end of described amplifying circuit is as the input end of described mu balanced circuit; The output terminal of described amplifying circuit is as the output terminal of described mu balanced circuit, and described amplifying circuit, in the time that the output terminal of described comparative voltage is exported high level, is adjusted the voltage of the electric signal of the output terminal output of described amplifying circuit.
Above-mentioned mu balanced circuit, the first input end of comparator circuit is connected with one end of described reference voltage circuit, the second input end of comparator circuit is connected with the output terminal of amplifying circuit, like this in the time of the voltage of the electric signal of the low reference voltage output of electric signal of the output terminal output of amplifying circuit, comparator circuit is just to the second input end input high level signal of amplifying circuit, amplifying circuit is just operated in magnifying state like this, the signal that the first input end of amplifying circuit is obtained amplifies, then exports through the output terminal of amplifying circuit.Therefore the voltage difference of mu balanced circuit input voltage and output voltage can be improved like this, thereby the range of application of voltage stabilizing electricity can be expanded.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of mu balanced circuit of providing of the embodiment of the present invention;
Fig. 2 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention;
Fig. 3 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention;
Fig. 4 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention;
Fig. 5 is the circuit diagram of a kind of mu balanced circuit of providing of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the structural representation of a kind of mu balanced circuit of providing of the embodiment of the present invention, as shown in Figure 1, comprising: reference voltage circuit 11, comparator circuit 12 and amplifying circuit 13, wherein:
The first input end of comparator circuit 12 is connected with the described other end of reference voltage circuit 11, the second input end of comparator circuit 12 is connected with the output terminal of amplifying circuit 13, the output terminal of comparator circuit 12 is connected with the second input end of amplifying circuit 13, comparator circuit 12 compares for the voltage of electric signal and the voltage of the electric signal that described the second input end obtains that described first input end is obtained, when the voltage of the electric signal that the voltage of the electric signal obtaining when described the second input end obtains lower than described first input end is low, the output terminal output high level signal of comparator circuit 12,
The first input end of amplifying circuit 13 is as the input end of described mu balanced circuit; The output terminal of amplifying circuit 13 is as the output terminal of described mu balanced circuit, and amplifying circuit 13, in the time that the output terminal of described comparative voltage is exported high level, is adjusted the voltage of the electric signal of the output terminal output of described amplifying circuit.
Optionally, when the voltage of the electric signal that the voltage of the electric signal (being the electric signal of the output terminal output of amplifying circuit 13) getting when the second input end of comparator circuit 12 obtains lower than the first output terminal of comparator circuit 12, the output terminal of comparator circuit 12 is just exported high level signal to the second input end of amplifying circuit 13, the second input end of amplifying circuit 13 receives after this high level signal, just can be operated in magnifying state, just can improve the voltage of output terminal output electrical signals.So just can realize the voltage difference that improves the first input end of amplifying circuit 13 and the output terminal of amplifying circuit 13, improve the voltage difference of input end and the output terminal of mu balanced circuit, thereby expand the range of application of mu balanced circuit.
Optionally, the enlargement factor of above-mentioned amplifying circuit 13, can be arranged to according to the actual requirements different enlargement factors, in the time that application scenarios needs high-tension mu balanced circuit, amplifying circuit 13 just can be set to the amplifying circuit of high-amplification-factor, in the time needing the lower mu balanced circuit of scene needs, amplifying circuit 13 just can be set to the amplifying circuit of low enlargement factor.
Above-mentioned mu balanced circuit, the first input end of comparator circuit is connected with one end of described reference voltage circuit, the second input end of comparator circuit is connected with the output terminal of amplifying circuit, like this in the time of the electric signal of the low reference voltage output of electric signal of the output terminal output of amplifying circuit, comparator circuit is just to the second input end input high level signal of amplifying circuit, amplifying circuit is just operated in magnifying state like this, the signal that the first input end of amplifying circuit is obtained amplifies, then exports through the output terminal of amplifying circuit.Therefore the voltage difference of mu balanced circuit input voltage and output voltage can be improved like this, thereby the range of application of voltage stabilizing electricity can be expanded.
Fig. 2 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention, as shown in Figure 2, comprising: reference voltage circuit 21, the first current-limiting circuit 22, comparator circuit 23 and amplifying circuit 24, wherein:
The input end of the first current-limiting circuit 22, the first current-limiting circuits 22 connects the first input end of amplifying circuit 23, and the first current-limiting circuit 22 is for the electric current of the electric signal that limits the first input end of amplifying circuit 24 and input to reference voltage circuit 21.
(the first input end of comparator circuit 23 is connected with the described other end of reference voltage circuit 21, the first input end of the output terminal of the first current-limiting circuit 22 and comparator circuit 23 is all connected same one end of reference voltage circuit 21), the second input end of comparator circuit 23 is connected with the output terminal of amplifying circuit 24, the output terminal of comparator circuit 23 is connected with the second input end of amplifying circuit 24, comparator circuit 23 compares for the voltage of electric signal and the voltage of the electric signal that described the second input end obtains that described first input end is obtained, when the voltage of the electric signal that the voltage of the electric signal obtaining when described the second input end obtains lower than described first input end is low, the output terminal output high level signal of comparator circuit 23,
The first input end of amplifying circuit 24 is as the input end of described mu balanced circuit; The output terminal of amplifying circuit 24 is as the output terminal of described mu balanced circuit, and amplifying circuit 24, in the time that the output terminal of described comparative voltage is exported high level, is adjusted the voltage of the electric signal of the output terminal output of described amplifying circuit.
Like this owing to there being the first current-limiting circuit 22 to carry out current limliting to the first input end of amplifying circuit 24 to the electric current of reference voltage circuit 21 transmission of electric signals, thereby can avoid mu balanced circuit to burn out because of overcurrent.
As the optional embodiment of one, reference voltage circuit 21 can comprise:
Voltage stabilizing diode, the positive pole of described voltage stabilizing diode is for ground connection, and the negative pole of described voltage stabilizing diode is for being connected with the first input end of amplifying circuit 24.The negative pole that can be voltage stabilizing two pipes is connected with the first input end of amplifying circuit 24 by the first current-limiting circuit 22.
As the optional embodiment of one, comparator circuit 23 can comprise:
Comparer, the electrode input end of described comparer is connected with the described other end of reference voltage circuit 21, and the negative input of described comparer is connected with the output terminal of amplifying circuit 24, and the output terminal of described comparer is connected with the first input end of amplifying circuit 24.
Optionally, above-mentioned comparer can be operational amplifier, and operational amplifier can be selected the operational amplifier of μ A741 model.
Optionally, when the voltage of the electric signal that the voltage of the electric signal obtaining when the negative input of above-mentioned comparer obtains lower than electrode input end, comparer is just exported high level signal to the second output terminal of amplifying circuit 24, so that amplifying circuit 24 is operated in magnifying state.
As the optional embodiment of one, described amplifying circuit comprises:
The first triode and the second triode, wherein:
The base stage of described the first triode is connected with the output terminal of comparator circuit 23, the emitter of described the first triode is connected with the base stage of described the second triode, the collector of described the first triode is connected with the collector of described the second triode, the collector of described the two or three utmost point is as the input end of described mu balanced circuit, the output terminal of the very described mu balanced circuit of the transmitting of described the second triode.
Optionally, above-mentioned the first triode and the second triode can be the triodes of NPN type.
Optionally, in the time that the base stage of above-mentioned the first triode receives high level signal, the one or three utmost point is operated in magnifying state, the electric signal that the first triode amplifies through the first triode to the base stage output of the second triode by emitter, when the second triode receives this electric signal, the second triode is operated in magnifying state, thereby improves the output electrical signals of the second triode, improves the electric signal of amplifying circuit 24 output terminal outputs.
Optionally, the first current-limiting circuit 22 can comprise:
The first resistance, first resistance one end connects the first input end of amplifying circuit 24 in succession, the another end of the first resistance and reference voltage circuit 21 the described other end be connected, (, the first input end of the output terminal of the first current-limiting circuit 22 and comparator circuit 23 is all connected same one end of reference voltage circuit 21).
Foregoing circuit, on the basis of embodiment, increase by the first current-limiting circuit in the above, owing to there being the first current-limiting circuit to carry out current limliting to the first input end of amplifying circuit to the electric current of reference voltage circuit transmission of electric signals, thereby can avoid mu balanced circuit to burn out because of overcurrent.Meanwhile, the voltage difference of mu balanced circuit input voltage and output voltage can also be improved, thereby the range of application of voltage stabilizing electricity can be expanded.
Fig. 3 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention, as shown in Figure 3, comprising: reference voltage circuit 31, the first current-limiting circuit 32, comparator circuit 33, the second current-limiting circuit 34 and amplifying circuit 35, wherein:
The input end of the first current-limiting circuit 32, the first current-limiting circuits 32 connects the first input end of amplifying circuit 33, and the first current-limiting circuit 32 is for the electric current of the electric signal that limits the first input end of amplifying circuit 35 and input to reference voltage circuit 31.
(the first input end of comparator circuit 33 is connected with the described other end of reference voltage circuit 31, the first input end of the output terminal of the first current-limiting circuit 32 and comparator circuit 33 is all connected same one end of reference voltage circuit 31), the second input end of comparator circuit 33 is connected with the output terminal of amplifying circuit 35, the output terminal of comparator circuit 33 is connected with the second input end of amplifying circuit 35 by the second current-limiting circuit 34, comparator circuit 33 compares for the voltage of electric signal and the voltage of the electric signal that described the second input end obtains that described first input end is obtained, when the voltage of the electric signal that the voltage of the electric signal obtaining when described the second input end obtains lower than described first input end is low, the output terminal output high level signal of comparator circuit 33,
The input end of the second current-limiting circuit 34 is connected with the output terminal of comparator circuit 33, the output terminal of the second current-limiting circuit 34 is connected with the second input end of amplifying circuit 35, and the second current-limiting circuit 34 is the electric current to the electric signal of the second input end input of amplifying circuit 35 for limiting comparison circuits 33;
The first input end of amplifying circuit 35 is as the input end of described mu balanced circuit; The output terminal of amplifying circuit 35 is as the output terminal of described mu balanced circuit, and amplifying circuit 35, in the time that the output terminal of described comparative voltage is exported high level, is adjusted the voltage of the electric signal of the output terminal output of described amplifying circuit.
Like this owing to there being the second current-limiting circuit 34 to carry out current limliting to the output terminal of comparator circuit 33 to the electric current of amplifying circuit 35 transmission of electric signals, thereby can avoid mu balanced circuit to burn out because of overcurrent.
Foregoing circuit, has increased by the second current-limiting circuit on the basis of embodiment in the above, and the second current-limiting circuit is carried out current limliting to the output terminal of comparator circuit to the electric current of amplifying circuit transmission of electric signals, thereby can avoid mu balanced circuit to burn out because of overcurrent.Meanwhile, the voltage difference of mu balanced circuit input voltage and output voltage can also be improved, thereby the range of application of voltage stabilizing electricity can be expanded.
Fig. 4 is the structural representation of the another kind of mu balanced circuit that provides of the embodiment of the present invention, as shown in Figure 4, comprising: reference voltage circuit 41, the first current-limiting circuit 42, comparator circuit 43, the second current-limiting circuit 44, amplifying circuit 45 and decoupling circuit 46, wherein:
The structure of reference voltage circuit 41, the first current-limiting circuit 42, comparator circuit 43, the second current-limiting circuit 44 and amplifying circuit 45 and between annexation can be with reference to embodiment above.
As the optional embodiment of one, decoupling circuit 46 can comprise:
The first electric capacity and the second electric capacity, wherein:
One end of described the first electric capacity is for ground connection, and the other end of described the first electric capacity is connected with the output terminal of amplifying circuit 45, and one end of described the second electric capacity is for ground connection, and the other end of described the second electric capacity is connected with the output terminal of amplifying circuit 45.
Optionally, described the first electric capacity is electrochemical capacitor, and the positive pole of described electrochemical capacitor is connected with the output terminal of described amplifying circuit, and the negative pole of described electrochemical capacitor is for ground connection.
Foregoing circuit, on the basis of embodiment, increase in the above, when decoupling circuit can be for the voltage of the electric signal that obtains when the low comparator circuit first input end of voltage of the electric signal of the output terminal output of amplifying circuit, the electric signal makeup energy exported to amplifying circuit 45, has accelerated the voltage of the electric signal of the output terminal output that improves amplifying circuit like this.Meanwhile, the voltage difference of mu balanced circuit input voltage and output voltage can also be improved, thereby the range of application of voltage stabilizing electricity can be expanded.
Fig. 5 is the circuit diagram of a kind of mu balanced circuit of providing of the embodiment of the present invention, as shown in Figure 5, wherein, Vin and Vo end are respectively input end and the output terminal of mu balanced circuit, the negative pole of voltage stabilizing diode ZD1 is connected with the input end of mu balanced circuit by resistance R 1, the positive pole of voltage stabilizing diode ZD1 is for receiving, the electrode input end of operational amplifier U1B is connected with the negative pole of voltage stabilizing diode ZD1, voltage stabilizing diode ZD1 provides reference voltage signal for operational amplifier U1B, the negative input of operational amplifier U1B is connected with triode Q1, the output terminal of operational amplifier U1B is connected with the base stage of triode Q2 by voltage R2, the collector of triode Q2 is connected with the input end of mu balanced circuit, the emitter of triode Q2 is connected with the base stage of triode Q1, the collector of triode Q1 is connected with the input end of mu balanced circuit, the positive pole of capacitor C 1 is connected with the emitter of triode Q, the negative pole of capacitor C 1 is for ground connection, capacitor C 2 one end are connected with the emitter of triode Q, the other end of capacitor C 2 is for ground connection.
Optionally, when the voltage of the electric signal that the voltage of the electric signal obtaining when the negative input of operational amplifier U1B obtains lower than the electrode input end of operational amplifier U1B (voltage of the electric signal of the emitter output of triode Q1 is lower than the voltage of the electric signal of the negative pole output of voltage stabilizing diode ZD1), the output terminal high level signal of operational amplifier U1B, the base stage of triode Q2 receives after this high level signal, the collector junction of triode Q2 is reverse-biased, emitter junction positively biased, triode Q2 is operated in magnifying state; Meanwhile, the base stage of triode Q1 can get the electric signal after triode Q2 amplifies, and the collector junction of triode Q1 is reverse-biased, emitter junction positively biased, and triode Q1 is operated in magnifying state; Simultaneously, when collector junction reverse-biased, emitter junction positively biased, when triode Q2 is operated in magnifying state, capacitor C 1 and capacitor C 2 are discharged to the emitter of triode Q1, to supplement the energy of triode Q1 emitter output electrical signals, to make quickly the emitter of triode Q1 improve the voltage of output electrical signals.
Above-mentioned mu balanced circuit, can improve the voltage difference of mu balanced circuit input voltage and output voltage, thereby can expand the range of application of voltage stabilizing electricity.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random access memory (Random Access Memory is called for short RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (10)
1. a mu balanced circuit, is characterized in that, comprising: reference voltage circuit, comparator circuit and amplifying circuit, wherein:
Described reference voltage circuit one end is for ground connection, and the described reference voltage circuit other end is connected with the first input end of described amplifying circuit;
The first input end of described comparator circuit is connected with the described other end of described reference voltage circuit, the second input end of described comparator circuit is connected with the output terminal of described amplifying circuit, the output terminal of described comparator circuit is connected with the second input end of described amplifying circuit, described comparator circuit compares for the voltage of electric signal and the voltage of the electric signal that described the second input end obtains that described first input end is obtained, when the voltage of the electric signal that the voltage of the electric signal obtaining when described the second input end obtains lower than described first input end is low, the output terminal output high level signal of described comparator circuit,
The first input end of described amplifying circuit is as the input end of described mu balanced circuit; The output terminal of described amplifying circuit is as the output terminal of described mu balanced circuit, and described amplifying circuit, in the time that the output terminal of described comparative voltage is exported high level, is adjusted the voltage of the electric signal of the output terminal output of described amplifying circuit.
2. mu balanced circuit as claimed in claim 1, is characterized in that, described mu balanced circuit also comprises:
The first current-limiting circuit, the input end of described the first current-limiting circuit connects the first input end of described amplifying circuit, the output terminal of described the first current-limiting circuit and described reference voltage circuit the described other end be connected, described the first current-limiting circuit is for limiting the first input end of described amplifying circuit to the electric current of the electric signal of reference voltage circuit input.
3. mu balanced circuit as claimed in claim 1 or 2, is characterized in that, described mu balanced circuit also comprises:
The second current-limiting circuit, the input end of described the second current-limiting circuit is connected with the output terminal of described comparator circuit, the output terminal of described the second current-limiting circuit is connected with the second input end of described amplifying circuit, and described the second current-limiting circuit is for limiting the electric current of described comparator circuit to the electric signal of the second input end input of described amplifying circuit.
4. mu balanced circuit as claimed in claim 1 or 2, is characterized in that, described mu balanced circuit also comprises:
Decoupling circuit, one end of described decoupling circuit is connected with the output terminal of described amplifying circuit, the other end of described decoupling circuit is for ground connection, when described decoupling circuit is used for the voltage of the electric signal obtaining when the low described comparator circuit first input end of voltage of the electric signal of the output terminal output of described amplifying circuit, give the electric signal makeup energy of described amplifying circuit output.
5. mu balanced circuit as claimed in claim 1, is characterized in that, described reference voltage circuit comprises:
Voltage stabilizing diode, the positive pole of described voltage stabilizing diode is for ground connection, and the negative pole of described voltage stabilizing diode is for being connected with the first input end of described amplifying circuit.
6. mu balanced circuit as claimed in claim 1, is characterized in that, described comparator circuit comprises:
Comparer, the electrode input end of described comparer is connected with the described other end of described reference voltage circuit, the negative input of described comparer is connected with the output terminal of described amplifying circuit, and the output terminal of described comparer is connected with the first input end of described amplifying circuit.
7. mu balanced circuit as claimed in claim 1, is characterized in that, described amplifying circuit comprises:
The first triode and the second triode, wherein:
The base stage of described the first triode is connected with the output terminal of described comparator circuit, the emitter of described the first triode is connected with the base stage of described the second triode, the collector of described the first triode is connected with the collector of described the second triode, the collector of described the two or three utmost point is as the input end of described mu balanced circuit, the output terminal of the very described mu balanced circuit of the transmitting of described the second triode.
8. mu balanced circuit as claimed in claim 7, is characterized in that, described the first triode is NPN type triode, and described the second triode is NPN type triode.
9. mu balanced circuit as claimed in claim 4, its feature exists, and described decoupling circuit comprises:
The first electric capacity and the second electric capacity, wherein:
One end of described the first electric capacity is for ground connection, and the other end of described the first electric capacity is connected with the output terminal of described amplifying circuit, and one end of described the second electric capacity is for ground connection, and the other end of described the second electric capacity is connected with the output terminal of described amplifying circuit.
10. mu balanced circuit as claimed in claim 9, is characterized in that, described the first electric capacity is electrochemical capacitor, and the positive pole of described electrochemical capacitor is connected with the output terminal of described amplifying circuit, and the negative pole of described electrochemical capacitor is for ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475339.8A CN103838283A (en) | 2012-11-21 | 2012-11-21 | Voltage stabilizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475339.8A CN103838283A (en) | 2012-11-21 | 2012-11-21 | Voltage stabilizing circuit |
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| CN103838283A true CN103838283A (en) | 2014-06-04 |
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| CN201210475339.8A Pending CN103838283A (en) | 2012-11-21 | 2012-11-21 | Voltage stabilizing circuit |
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| JPH0744248A (en) * | 1993-07-29 | 1995-02-14 | Matsushita Electric Works Ltd | Constant voltage circuit |
| CN2164569Y (en) * | 1993-08-29 | 1994-05-11 | 王恒山 | Energy-saving dc voltage stabilizing power |
| JPH0795765A (en) * | 1993-09-21 | 1995-04-07 | Sharp Corp | Stabilized dc power unit |
| US5831471A (en) * | 1995-07-13 | 1998-11-03 | Sharp Kabushiki Kaisha | DC-stabilized power circuit |
| CN1818819A (en) * | 2006-01-05 | 2006-08-16 | 大连大学 | Current source controller with external load power supply |
| CN202331248U (en) * | 2011-02-25 | 2012-07-11 | 丽水职业技术学院 | Power source stabilizing device with one power source and capable of regulating voltage from zero volt |
| CN202067170U (en) * | 2011-08-08 | 2011-12-07 | 罗斌 | Voltage stabilizing reference circuit with adjustable temperature drift coefficient |
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