发明名称 SWITCHING POWER SUPPLY
摘要 PURPOSE:To stabilize each output independently by a simple constitution by separately producing signals controlling the pulse width of a main switching transistor by respective output voltage and alternately applying the signals to the main switching transistor. CONSTITUTION:A main switching transistor 8 is connected in series with a primary winding for a transformer 7, and switching transistors 11, 12 are connected in series with a secondary with a secondary winding. Outputs C, D are transmitted over a pulse generating circuit 4, and pulses produced in the circuit 4 are sent to a control circuit 5. The control circuit 5 drives a base for the transistor 8 through a drive transformer 15 and a resistor 16 while alternately turning the transistors 11, 12 ON-OFF, and interchangeably supplied each output side with energy corresponding to the voltage of respective output.
申请公布号 JPS62138064(A) 申请公布日期 1987.06.20
申请号 JP19850279620 申请日期 1985.12.12
申请人 SEIKO INSTR & ELECTRONICS LTD 发明人 FUJITA SUSUMU
分类号 H02M3/28 主分类号 H02M3/28
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