Micro power supply device using switching element

Details Micro power supply device using switching element Micro power supply device using switching element

1995-09-14

1997-10-14

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

363124, G05F 1652

Patent

active

056776179

ABSTRACT:
A micro power supply device using a switching element includes a lateral MOSFET, an inductor, a rectifier and a controller. The lateral MOSFET PWM-switches the output voltage of the direct-current power supply at a low loss. The rectifier rectifies the output voltage of the direct-current power supply PWM-switched by the lateral MOSFET. The inductor is provided between the direct-current power supply and the lateral MOSFET. The controller supplies a PWM control signal to the gate electrode of the lateral MOSFET in response to the output voltage of the rectifier.

REFERENCES:
patent: 4720668 (1988-01-01), Lee et al.
patent: 4841564 (1989-06-01), Schoofs
patent: 5384518 (1995-01-01), Kido et al.
T. Sato et al., Planar Inductor for Very Small DC-DC Converters, Intelec'91, Nov. 1991, pp. 709-713.
M. F. Schlecht et al., Comparison of the Square-Wave and Quasi-Resonant Topologies, IEEE Transactions on Power Eelctronics, vol. 3, No. 1, Jan. 1988, pp. 83-92.

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