CIRCUIT ARRANGEMENT FOR LIMITING AN OPERATING VOLTAGE OBTAINED FROM A SECONDARY DEVELOPMENT OF A TRANSFORMER VIA A RECTIFIER.

摘要

Circuitry for limiting a rectified operating voltage. To recover energy from unutilized power from the secondary winding of a switching-network transformer, it is recirculated to the primary winding through a diode. When appliances fail, the excess energy component can increase to the extent that components are destroyed because the operating voltage increases. To prevent this situation the excess energy is recirculated into a higher operating voltage US through a diode and through another secondary winding of the transformer. The number of turns in the second secondary winding and its polarity ensure that the flyback voltage UR will be higher than the difference between US and UB. Switching-network components in conjunction with rectifier modulators in television receivers.