[특허]Voltage clamped parallel resonant converter with controllable duty cycle

Voltage clamped parallel resonant converter with controllable duty cycle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02M-005/45
출원번호	US-0322100 (1994-10-12)
발명자 / 주소	Lauw Hian K. (Corvallis OR) Zedwick Robert S. (Corvallis OR)
출원인 / 주소	Electronic Power Conditioning, Inc. (Corvallis OR 02)
인용정보	피인용 횟수 : 44 인용 특허 : 0

초록 ▼

A high efficiency static voltage clamped parallel resonant converter for converting power between two AC and/or DC circuits includes a link circuit between an input switch circuit and an output switch circuit. The link circuit comprises a parallel resonant circuit and link switch elements which are switched to generate a unipolar train of link voltage pulses. All of the switches are “soft-switched”on and off at substantially zero voltage or zero current. Each link voltage pulse consists of a zero segment and a non-zero segment. The duty cycle of these voltage pulses is controllable by the link switches and such that the duration of the zero and non-zero segments are independently controllable. Pulse width modulation (PWM) and pulse area modulation (PAM) can be applied for reduced filtering requirements and maintaining high efficiency for operation at fractional load conditions. The link voltage is clamped to a maximum voltage during the non-zero segment of each link voltage pulse. Resonant oscillation due to the resonant circuit is active only during the transitions between the zero and non-zero voltage levels of the link voltage pulses. As a result, all converter components will be exposed to voltage and current levels which are higher than the load voltage and current levels by just a small fraction.

대표청구항 ▼

A parallel resonant converter for transferring electrical power between a power source and a load, comprising: a first switch circuit for coupling the source to the load; a link circuit for generating link signal pulses connected between the source and the first switch circuit, said link circuit containing a parallel resonant tank circuit with a resonant capacitor connected in parallel to the first switch circuit; and the link circuit containing link switches which are electronically switched to generate a train of link voltage pulses that are transmitted to the output terminals of the first switch circuit with each voltage pulse consisting of a zero and non-zero segment and both segments being continuously and independently controllable in duration by said link switches.

이 특허를 인용한 특허 (44)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Voltage clamped parallel resonant converter with controllable duty cycle 원문보기

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Voltage clamped parallel resonant converter with controllable duty cycle 원문보기

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이 특허를 인용한 특허 (44)

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