A current amplifier driver capable of driving both 10 Base-T signalling and 100 Base signalling in a Local Area Network (LAN) includes one constant current source. A voltage controlled switch is contained in each of four vertical segment of an H-bridge circuit. Two voltage signals are applied to the...http://www.google.com/patents/US5986479?utm_source=gb-gplus-sharePatent US5986479 - Fully switched, class-B, high speed current amplifier driver
