Patent ID: 9577517
Date: 2017-02-21
CPC Classifications: H02M

Claim:
1. A DCDC converter operable to receive an input DC voltage and to generate an output DC voltage based on the received input DC voltage, said DCDC converter comprising: a transconductance amplifier operable to output a transconductance current and a switch control signal, the transconductance current being based on a comparison of a portion of the output DC voltage and a predetermined reference voltage; a comparator having a first n-channel field effect transistor input and a second n-channel field effect transistor input, said first n-channel field effect transistor input and said second n-channel field effect transistor input forming a differential pair, said comparator being operable to output a compared signal based on a first input voltage received at said first n-channel field effect transistor input and a second input voltage received at said second n-channel field effect transistor input; a current driving component operable to generate an output current based on the compared signal; an output impedance component arranged to generate the output DC voltage based on the output current; a switch arranged between said first n-channel field effect transistor input and said second n-channel field effect transistor input, said switch being operable to open and close based on the switch control signal; and a clamp resistor arranged in series with said switch and arranged between said first n-channel field effect transistor input and said second n-channel field effect transistor input; and a p-channel field effect transistor arranged in series with said clamp resistor and arranged between said first n-channel field effect transistor input and said second n-channel field effect transistor input, said p-channel field effect transistor being controlled by the output DC voltage.