Patent ID: 7397230

Claim:
An integrated field emitting transistor buck converter for down converting a first voltage to a lower, second voltage, the buck converter comprising: an oscillator for producing a periodic clock signal, the oscillator comprising a first input, a first output, a second output, and a third output; a soft start circuit for enabling a smooth start and voltage sequencing, the soft start circuit comprising a first input coupled to the first output of the oscillator, and a first output; an error amplifier for amplifying a first signal, the error amplifier comprising an inverting input, a non-inverting input, and a first output; a ramp generator for amplifying a second signal, the ramp generator comprising a first output; and a pulse width modulator for holding a frequency constant while the width of a power pulse is varied, the pulse width modulator comprising a first input coupled to the second output of the oscillator, a second input coupled to the first output of the soft start circuit, a third input coupled to the first output of the error amplifier, and a fourth input coupled to the first output of the ramp generator.