High-frequency driving device for electrodeless lamp

Abstract

The invention relates to a high-frequency driving device for an electrodeless lamp, including a PCB (Printed Circuit Board), a first power supply, a second power supply, a crystal oscillator unit, and a driving chip, wherein the crystal oscillator unit and the driving chip are connected to the PCB, the first power supply supplies power for the crystal oscillator, the second power supply supplies power for the driving chip, and is connected to a power supply of a controller main board through a connector. When a nominal voltage reaches the crystal oscillator, the crystal oscillator unit outputs a standard pulse square wave with the frequency of 2.65M. The square wave reaches the driving chip. The driving chip outputs two groups of driving signals and drives an MOS tube to work through elements on the controller main board. The above technical scheme achieves the reduction of the element number, and smaller signal attenuation, and higher driving signal stability, so that the power consumed by the driving chip of the driving device is greatly reduced, thus the driving device can safely, efficiently, and stably work without fault in various environment temperatures. Moreover the technical scheme also has technical effects of convenient installation, standard production and manufacture technologies, and simple structure.

Description

technical field [0001] The invention relates to a high-frequency drive device for an electrodeless lamp, which can stably output a high-power drive signal at a high frequency of 2.65M. Background technique [0002] At present, the existing high-frequency drive circuit for electrodeless lamps generally consists of an oscillator composed of capacitors, resistors, and transistors, and the pulses output by the oscillator are used to drive MOS tubes. However, the electrodeless lamp controller made by using the above discrete components will have serious frequency drift, and the amplitude of the driving signal is indeterminate, so that the MOS cannot be in an optimal working state. In practical application, it is very difficult to manufacture and debug the controller with the above-mentioned driving device, the failure rate of the controller is high, and the technical index that can be achieved is also low. Contents of the invention [0003] In order to solve the problems of th...

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Problems solved by technology

[0003] In order to solve the problems of the frequency drift of the electrodeless lamp controller and the unstable signal of the driving device in the prior art, the present invention provides a high stability, constant drive output, and can greatly reduce the failure rate of the electrodeless lamp controller. High-frequency drive device for electrodeless lamps that is compact, easy to install and manufacture

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