发明名称 |
Abgestimmtes Schaltnetzteil mit Stromregelung |
摘要 |
In a tuned switch mode power supply a zero voltage is maintained across a transistor switch (Q3), during both turn off and turn on switching transition intervals in the transistor switch. The tuned switch mode power supply operates in a current-mode control, on a current pulse-by-current pulse control basis. A modulator (31) of the power supply includes a pair of transistors (Q1, Q2) that form a regenerative switch to produce a portion of a control signal (VG) of the transistor switch that causes the transistor switch to turn off. A transformer-coupled input supply voltage (V1) maintains the transistor switch conductive as long as the current in the transistor switch does not exceed the threshold level of a regenerative switch. A resonant pulse (VD) is transformer-coupled from the resonant circuit to the regenerative switch for turning off the regenerative switch and for maintaining the transistor switch non conductive after the regenerative switch is turned off. <IMAGE> |
申请公布号 |
DE69623714(T2) |
申请公布日期 |
2003.05.22 |
申请号 |
DE1996623714T |
申请日期 |
1996.10.02 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC. |
发明人 |
FITZGERALD, WILLIAM VINCENT |
分类号 |
H04N3/18;H02M3/28;H02M3/335;H02M3/338;(IPC1-7):H02M3/335 |
主分类号 |
H04N3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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