Patent ID: 7646229

Claim:
A method of operating a slew rate control circuit having a voltage regulation circuit and a divider circuit, the method comprising: receiving an analog voltage signal at the voltage regulation circuit from the divider circuit; generating synchronous signals from the voltage regulation circuit, the synchronous signals based on the analog voltage signal; controlling the divider circuit to adjust the analog voltage signal including selecting one or more parallel current paths using a plurality of series coupled transistors and the synchronous signals to adjust the analog voltage signal, each of the series coupled transistors including a transistor and a load transistor dedicated to the transistor, the transistor receiving one of the synchronous signals as a control signal and its load transistor receiving a control input different from the synchronous signals, the transistor and its load transistor coupled in series with each other; and transmitting the synchronous signals to at least one of a divider of the divider circuit or an output driver circuit.