发明名称 LED DRIVER CIRCUIT WITH A BOOSTED VOLTAGE OUTPUT
摘要 A Light Emitting Diode (LED) driver circuit with a boosted voltage output for driving an LED from a voltage power supply having a voltage that is lower than the turn "on" voltage of the LED is provided. A charge pump provides the boosted voltage output of the LED driver circuit. During operation, the LED driver circuit switches the LED on and off at a predetermined frequency such that a human observer perceives the LED to be continuously turned "on". In one embodiment, the LED driver circuit further comprises a current regulator for regulating the current supplied to the LED. In another embodiment, the LED driver circuit comprises a voltage regulator to regulate the boosted voltage output of the LED driver circuit.
申请公布号 US2002171467(A1) 申请公布日期 2002.11.21
申请号 US20010859310 申请日期 2001.05.18
申请人 WORLEY EUGENE ROBERT;WORLEY EUGENE ROBERT 发明人 WORLEY EUGENE ROBERT;WORLEY EUGENE ROBERT
分类号 H03K17/06;H05B33/08;(IPC1-7):H03K3/42 主分类号 H03K17/06
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