Patent ID: 7423386
Filing Date: 2008-09-09
Classification: H02M,H05B,Y02B

Abstract:
1. A electronic ballast control circuit, comprising: a first resistor connected in series with a first electronic switch, the first resistor including a first end and a second end, the first electronic switch including a first terminal and a second terminal; a voltage limiter having a first end connected directly to the first terminal of the first electronic switch and a second end connected directly to the second terminal of the first electronic switch; a second resistor connected in series with the voltage limiter and having a first end connected directly to the first terminal of the first electronic switch and a second end connected directly to the first end of the first resistor; and a third resistor connected in series with a second electronic switch to form a series combination, the third resistor having a first end and a second end, the second electronic switch having a first terminal and a second terminal; and wherein the first end of the third resistor is connected directly to the first terminal of the first electronic switch, the second end of the third resistor is connected directly to the first terminal of the second electronic switch, and the second terminal of the second electronic switch is connected directly to the second end of the voltage limiter.