Patent ID: 6268703
Filing Date: 2001-07-31
Classification: H05B,Y02B

Abstract:
A gas discharge lamp having a controlled power source and a lamp base, said controlled power source comprising a rectifier circuit, a filter circuit, a switching circuit, and a sampling control circuit, and an output circuit,wherein a power source is formed with the rectifier circuit, the filter circuit, the switching circuit, and the sampling control circuit; the output circuit is connected to more than one lamps connected serially to form a lamp base;said sampling control circuit comprising a microprocessor unit MCU, an I/O interface IC, and a digital display device LED; andsaid I/O extended interface IC is connected to the I/O input port of said microprocessor unit MCU, the I/O output ports of said microprocessor unit MCU are connected to the input ports of said switching circuit and said digital display LED respectively, and four sets of the mode selection switching circuit formed by switches K1-K4 are disposed at the input ports of the microprocessor unit MCU.