Power supply device with dead-time control and printing...

Details Power supply device with dead-time control and printing... Power supply device with dead-time control and printing...

2007-10-09

2007-10-09

Easthom, Karl (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S283000

Reexamination Certificate

active

11002015

ABSTRACT:
In a power supply device including a PWM-controlled DC/DC converter which changes an output voltage on the basis of a setting signal, and a control unit, the DC/DC converter includes a circuit for changing a dead-time control voltage in accordance with a control signal. A dead-time control circuit is arranged, which sets the ON duty of a PWM main switching element at a predetermined time constant in accordance with the dead-time control voltage. The control unit outputs the setting signal and control signal. In this arrangement, an input rush current generated in changing the output voltage during operation can be reduced, and the time required for causing the output voltage to reach the setting value can also be shortened.

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