| 摘要 |
There is disclosed a regulated power supply system wherein an alternating current supply voltage is converted to a direct current voltage, which is regulated and applied to a converter, the converter including a pair of switching transistors for switching current through a linear transformer core and a further pair of switching transistors connected as a push-pull saturable reactor oscillator or inverter for supplying switching potentials to the first pair of transistors. A zener reference diode is used to sense over-voltage conditions to a load and automatically adjust a switching transistor in the regulator to adjust the voltage to the load. In accordance with the invention, one or more switching devices are connected across the zener diode, one of which is operated in accordance with signals from a computer or other low level signal source so as to turn on and turn off the power supply and the other of which is connected to a current sensing resistor for shunting the reference zener diode on current overloads. A further feature of the invention is in the overall system of conversion wherein power for the saturable reactor inverter and other operating potentials for the regulating circuit are derived from the regulator circuit per se, thereby improving the efficiency of the system.
|
