| 摘要 |
PURPOSE:To reduce the power consumption of a trigger signal pulse circuit by providing taps at the tertiary winding of a transformer coupled with a load, producing an induced voltage in response to the number of turns from the taps and using it as a trigger signal. CONSTITUTION:Taps are provided at the tertiary winding of a transformer 14 coupled directly with a load 13 to form the tertiary windings 14d, 14e, an error voltage is produced from the winding 14d, and a trigger signal is produced from the winding 14e. The induced voltage of the winding 14e is a pulse sufficient to apply a trigger to a blocking oscillator which has the tertiary winding 5c of a converter transformer 5, a resistor 8, and a capacitor 9. |
