发明名称 |
Power supply with reduced second harmonic |
摘要 |
A power supply receives an alternating current which is converted by a fixed rectifier to a direct current. The direct current is converted by an inverter to an alternating current of a desired frequency and provided to a parallel resonant fixed load circuit such as a work-coil of an induction heater. The power supply includes a device for reducing amplitude of at least a second harmonic of a fundamental frequency of the current output by the inverter so that a filter connected to the load circuit can have a roll-off frequency close to the design frequency of the load circuit.
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申请公布号 |
US6141227(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19990349251 |
申请日期 |
1999.07.08 |
申请人 |
CHELTENHAM INDUCTION HEATING LIMITED OF PHOENIX WORKS |
发明人 |
SHEIKH, HAROON KARAMAT;LIPSCOMB, PHILIP;LEONARD, MICHAEL RICHARD |
分类号 |
H02M1/12;H02M7/5387;H05B6/08;(IPC1-7):H02M1/12 |
主分类号 |
H02M1/12 |
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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