Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1995-07-21
1997-05-27
Wong, Peter S.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
363 56, 323262, G05F 110
Patent
active
056335792
ABSTRACT:
Disclosed is a boost converter using a stress energy reproducing snubber circuit, the converter comprising a first inductor connected between one terminal of an input portion and a first connection point; a first diode connected between said first connection point and one terminal of an output portion; and a switching device connected between said first connection point and the other terminal of said input portion, the other terminal of said input portion being connected to the other terminal of said output portion, and further comprising a second inductor connected between said first connection point and an anode of said first diode; a capacitor connected between said first connection point and a second connection point; a second diode having an anode connected to said second connection point and a cathode connected to a cathode of said first diode; and a third inductor and a third diode connected in series between said second connection point and the other terminal of said input portion, said third inductor having one terminal connected to said first second connection point and the other terminal connected to a third connection point and said third diode having a cathode connected to said third connection point and an anode connected to the other terminal of said input portion. The boost converter is capable of absorbing a stress energy occurring upon a switching device to be switched and reducing the absorbed stress energy through an LC resonance circuit. Therefore, an efficiency of the boost converter can be significantly improved.
REFERENCES:
patent: 4930061 (1990-05-01), Slack et al.
patent: 5343140 (1994-08-01), Gegner
patent: 5486752 (1996-01-01), Hua et al.
patent: 5532919 (1996-07-01), Gegner
"Novel Zero-Voltage-Transition PWM Converters", Guichao Hau, et al., IEEE, Mar. 1992, pp. 55-61.
Korea Telecommunication Authority
Riley Shawn
Wong Peter S.
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