发明名称 |
Method and circuit for reducing voltage level variation in a bias voltage in a power converter |
摘要 |
Circuit and method for reducing voltage level variation in a bias voltage generated in a power converter device are provided. The method allows providing a first voltage source configured to supply a first voltage during one respective mode of operation of the power converter, wherein the level of the voltage supplied by the first voltage source is directly proportional to variation in an input voltage of the converter device. The method further allows providing a second voltage source configured to supply a second voltage during another respective mode of operation of the power converter, wherein the level of the voltage supplied by the second voltage source has a generally inverse proportional relationship relative to variation in the input voltage of the converter device. At least one circuit parameter is selected in the voltage sources to adjust the respective levels of the first and second voltages. The first and second voltages are combined with one another to generate a combined voltage that comprises the bias voltage in the power converter device, the combined voltage resulting in a bias voltage level being relatively impervious to variation in the input voltage of the converter device.
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申请公布号 |
US6466461(B2) |
申请公布日期 |
2002.10.15 |
申请号 |
US20020068252 |
申请日期 |
2002.02.07 |
申请人 |
NETPOWER TECHNOLOGIES, INC. |
发明人 |
MAO HENGCHUN;JIANG YIMIN |
分类号 |
H02M3/335;(IPC1-7):H02M3/335 |
主分类号 |
H02M3/335 |
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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