Dual-loop DC-to-DC converter apparatus

Details Dual-loop DC-to-DC converter apparatus Dual-loop DC-to-DC converter apparatus

2011-02-01

2011-02-01

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S222000

Reexamination Certificate

active

07880457

ABSTRACT:
A dual loop DC-to-DC converter is provided that includes a first control loop that maintains a DC output voltage (VOUT) less than or equal to a desired maximum value of the VOUT, a second control loop that operates simultaneously with the first control loop and maintains a DC input voltage (VIN) greater than or equal to a desired minimum value of the VIN, and a duty cycle selection module. The first control loop generates a first clock signal having a first duty cycle, and the second control loop generates a second clock signal having a second duty cycle. The duty cycle selection module continuously determines which one of the first duty cycle and the second duty cycle has a lower duty cycle value, and continuously generates a PWM output signal having a modulated duty cycle equal to the lower duty cycle value.

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