Double-full-bridge injection phase-locking power synthesis halogen lamp group

Double-full-bridge injection phase-locking power synthesis halogen lamp group

  • CN 104,105,277 A
  • Filed: 04/15/2013
  • Published: 10/15/2014
  • Est. Priority Date: 04/15/2013
  • Status: Active Application
First Claim
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1. the synthetic Halogen lamp LED group of the bridge injection phase-locking power of enjoying a double blessing, comprise power-supply filter EMI, rectifier bridge stack, halogen lamp tube group, it is characterized in that:

  • also comprise power factor correction APFC, benchmark crystal oscillator, frequency divider, two self-oscillation chips, full-bridge inverter A, full-bridge inverter B, be added coupler, abnormal condition of lamp tube current detector, wherein, benchmark crystal oscillator is by quartz-crystal resonator, two inverters and resistance, electric capacity composition, first inverter input and output two ends cross-over connection biasing resistor, and respectively and connect ground capacity, simultaneously, the also quartz-crystal resonator of cross-over connection series connection trimmer, benchmark crystal oscillator output signal is through second inverter access frequency divider, self-oscillation chip includes oscillator, full-bridge inverting drive circuit, two self-oscillation chip oscillator connecting resistance R altogether 11, capacitor C 14synchronized oscillation, output connects the full-bridge inverter A, the full-bridge inverter B that form by two groups of complementary half-bridges of four high-power MOS field effect transistor, self-oscillation chip and full-bridge inverter A output power transformer T through full-bridge inverting drive circuit respectively 2with self-oscillation chip and full-bridge inverter B output power transformer T 3anti-phase feed-in is added the synthetic coupling of coupler power halogen lamp tube group, benchmark crystal oscillator signal injects two self-oscillation chip EXO end locking phases through frequency divider, abnormal condition of lamp tube current detector signal is through two self-oscillation chip SD ends of triode access, control the quick failure of oscillation of vibration and turn-off full-bridge inverter MOS field effect tube, electric network source is through the power end of power-supply filter EMI, rectifier bridge stack, power factor correction APFC output voltage access benchmark crystal oscillator, frequency divider, self-oscillation chip and full-bridge inverter A, self-oscillation chip and full-bridge inverter B.

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