发明名称 |
Series resonant power converter and method of controlling the same. |
摘要 |
<p>A series resonant power converter in which a resonant capacitor is commonly used in a series resonant circuit and a parallel resonant circuit, whereby a capacitance of the resonant capacitor can be considerably decreased as compared with that of a tank circuit according to a prior art, so that an energy handled by the resonant capacitor can be decreased, which results in decreasing a size of the resonant circuit and also decreasing a power loss. The converter includes means for detecting and computing a voltage applied across a main switch means in its OFF-state and a control circuit for driving the main switch means to its ON-state when the detected and computed value of the voltage drops to a minimum voltage required to sustain oscillation of the series resonant circuit. The minimum voltage is computed by a detecting circuit for detecting an input voltage, a detecting circuit for detecting a voltage of a second resonant circuit and a detecting circuit for detecting a DC output voltage conversed to a primary side of a main transformer.</p> |
申请公布号 |
EP0332436(A2) |
申请公布日期 |
1989.09.13 |
申请号 |
EP19890302335 |
申请日期 |
1989.03.09 |
申请人 |
ORIGIN ELECTRIC CO. LTD. |
发明人 |
SUZUKI, YOSHIO;ITO, MIDIO;KII, YASUO;SAITO, RYOJI |
分类号 |
H02M3/337 |
主分类号 |
H02M3/337 |
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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