Title: Controlling circuit with skip-frequency operation and electromagnetic interference of power supplier decreasement
Application Number: 200510105398 Application Date: 2005.09.27
Publication Number: 1941574 Publication Date: 2007.04.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02M1/08;H02M3/28;H03K3/017
Applicant(s) Name: Chongmao Science and Technology Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: shouning zhanghua hui
Abstract:
    The invention is concerned with the frequency bounce operating controlling circuit in order to reduces the electromagnetic interference of the power supplier, it is: the switch circuit couples to the feedback circuit that is used to create the switch signal to adjust the output of the power supplier; the first oscillator can decide the switch frequency of the switch signal; the second oscillator couples with the first oscillator in order to adjust the switch frequency of the switch signal and reduce the electromagnetic interference of the power supplier. The output of the second oscillator can control the attenuation rate of the feedback signal in the feedback circuit. Therefore, it can maintain the outputting power and the outputting voltage as the fixed value when the switch frequency bounce.
Time: 9
  |  Next Patent:Power supply switch control system ->