| 摘要 |
FIELD: electricity.SUBSTANCE: single-step DC voltage converter comprises transformer, which secondary windings are coupled to output pins of one or several converter outputs, primary winding is coupled to field-effect transistor and feedback winding is coupled to feedback divider, control transistor, time-setting capacitor, three logic inverters and logic AND element, between output of the latter and input of the first logic inverter there is in-series RC-circuit. At low loads or in idle mode gating time of the field-effect transistor is defined not by the time-setting capacitor but by low time constant of the in-series RC-circuit, at that disturbance voltage does not affect operation of the device.EFFECT: excluded loss in control stability in idle mode and improved reliability of the device at large.4 cl, 3 dwg |
