Multifunctional driving controller, WELD driving circuit and OLED driving circuit

Multifunctional driving controller, WELD driving circuit and OLED driving circuit

  • CN 1,909,759 A
  • Filed: 08/18/2006
  • Published: 02/07/2007
  • Est. Priority Date: 08/18/2006
  • Status: Active Grant
First Claim
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1. multi-functional driving governor, it includes control circuit, and described control circuit has a reference voltage input terminal, a controlled signal output and a feedback end, it is characterized in that, and described multi-functional driving governor also includes selected cell,This selected cell includes the control end of input control signal, low reference voltage input terminal and high reference voltage input terminal and output, and it is used for determining that with low reference voltage still be that senior staff officer'"'"'s voltage is output as selected reference voltage under the control of control signal,Described control circuit receives the selected reference voltage of selected cell output by its reference voltage input terminal, described controlled signal output is used to export the square-wave signal of certain duty ratio, described feedback end is used to receive the feedback signal of reflection square-wave signal duty ratio, described control circuit is with feedback signal and selected reference voltage compares and the duty ratio of regulating the output square-wave signal according to comparative result, converge on selected reference voltage place up to described feedback signal, the duty ratio of described square-wave signal converges on the fiducial value corresponding with selecting reference voltage.

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