Backlight source driving circuit and driving circuit thereof as well as liquid crystal television
A technology for driving circuits and backlight sources, which is applied to TVs, color TVs, components of color TVs, etc., can solve the problems of multi-chip and peripheral components, high cost, complex circuit structure, etc., and achieves simple and easy circuit implementation and work. Stable, simple circuit structure effect
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 The present invention will be further described below in conjunction with the accompanying drawings.
 Such as figure 2 As shown, the backlight driving circuit of the present invention includes: a backlight power supply circuit and a control circuit; wherein,
 The backlight power supply circuit, according to the received driving pulse signal output by the control circuit, provides the voltage required for operation to the backlight load;
 The control circuit, in response to the control voltage signal, samples the working current of the backlight load in real time, generates and outputs a corresponding driving pulse signal according to the sampled current signal.
 As a further embodiment of the present invention, the backlight power supply circuit includes: LLC resonance control and energy transfer circuit 14 and rectification and filtering circuit 15; wherein,
 The LLC resonance control and energy transfer circuit 14, according ...
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