Method and apparatus to provide temporary peak power from a...

Details Method and apparatus to provide temporary peak power from a... Method and apparatus to provide temporary peak power from a...

2007-07-03

2007-07-03

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S285000, C363S056100

Reexamination Certificate

active

10981959

ABSTRACT:
Various techniques directed to providing temporary peak power from a switching regulator are disclosed. In one aspect, a switching regulator includes a switch that is to be coupled between a power supply input and an energy transfer element of the power supply. A controller is coupled to be responsive to a feedback signal to be received from an output of the power supply. The controller is coupled to switch the switch in response to the feedback signal to regulate the output of the power supply. An oscillator is coupled to provide an oscillating signal to the controller to determine a maximum switching frequency of the switch. The oscillating signal is coupled to oscillate at a first frequency under a first moderate load condition at the power supply output. The oscillating signal is coupled to oscillate at a second frequency under a second peak load condition at the power supply output.

REFERENCES:
patent: 5912552 (1999-06-01), Tateishi
patent: 6295211 (2001-09-01), Nishida et al.
patent: 6737843 (2004-05-01), Kanakubo et al.
“LNK501 LinkSwitch® Family, Energy Efficient, CV/CC Switcher for Very Low Cost Chargers and Adapters,” Power Integrations, Inc., (Apr. 2003), pp. 1-20.

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