Methods and circuits for output over-voltage reduction in...

Details Methods and circuits for output over-voltage reduction in... Methods and circuits for output over-voltage reduction in...

2006-01-05

2008-05-27

Sterrett, Jeffrey L. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S284000, C323S285000

Reexamination Certificate

active

07378826

ABSTRACT:
Switching regulator Burst Mode control circuitry is provided for limiting voltage overshoot at the output of a switching regulator operating in power saving Burst Mode. The Burst Mode control circuitry may include regulator load current sensing circuitry which may be operative to put and maintain the regulator in the SLEEP state when the load current amplitude is below a threshold. The control circuitry may also include gated over-voltage comparator circuitry operative to reduce regulator output overshoot and to eliminate erroneous deactivation of the regulator switch circuitry when the regulator is not operating in Burst Mode. The gated over-voltage circuitry may include a one-shot timer circuit.

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