发明名称 |
Dc/ac converter and its controller ic |
摘要 |
An inverter has a semiconductor switch circuit in the primary winding of a transformer such that each of the switches of the switch circuit is controlled by pulse-width modulation (PWM) to supply a constant ac current and a constant ac voltage to a load, such as a cold cathode fluorescent light, connected to a secondary winding of the transformer. A common slow-start control circuit is provided in the inverter circuit to enable a common slow startup of the PWM control of the output voltage and output current. This arrangement suppresses an excessive voltage and an inrushing current during a startup.
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申请公布号 |
US2005219863(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20040501706 |
申请日期 |
2004.07.16 |
申请人 |
FUKUMOTO KENICHI;FUJITA HIROYUKI |
发明人 |
FUKUMOTO KENICHI;FUJITA HIROYUKI |
分类号 |
H05B41/24;H02M3/28;H02M7/48;H05B41/282;(IPC1-7):H02M3/335 |
主分类号 |
H05B41/24 |
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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