A three input voltage comparator provides termination of a pulse width modulation (PWM) output in a switched mode power supply. Shutdown of the PWM signal occurs when a sense current from the switching transistors exceeds either or both of the limit and error current references. The three input voltage comparator replaces the generally used two input voltage comparator and also eliminates the necessity of having to provide a voltage clamping circuit on the output of the voltage error amplifier in the switched mode power supply. The three input voltage comparator may also comprise selectable polarity control for more versatile integration of it into a switched mode power supply design.
申请公布号
WO2016144735(A3)
申请公布日期
2016.11.03
申请号
WO2016US20848
申请日期
2016.03.04
申请人
MICROCHIP TECHNOLOGY INCORPORATED
发明人
VAN EEDEN, Jacobus Albertus;YUENYONGSGOOL, Yong;CURTIS, Keith E.