Switching Power Supply Abstract A switching power supply having two or more DC outputs includes a DC power supply, a transformer having a primary winding, at least two secondary windings, and a feedback winding, a main switching element having an off...
Switching Power Supply Abstract Various three, four and five terminal power supply control packages for controlling delivery of power from a source to a load in both single and dual switch transformer coupled power converters are disclosed. By way of...
Switching Power Supply Abstract A switching power supply which is capable of generating several different output voltages and which can be easily miniaturized by using a transformer with a small number of terminals. For example, using a transformer w...
Switching Power Supply Abstract A protection circuit arranged in a switching power supply system for protecting the switching power supply system is provided. The protection circuit includes a detecting circuit electrically connected to a switching c...
Switching Power Supply Abstract A power supply apparatus includes a variable frequency oscillating circuit, a driver, a soft start circuit, switching elements for receiving a switching signal, a resonating capacitor connected at a connection point of...
Switching Power Supply Abstract A switching power supply includes saturable reactors and an amplifier control circuit for reducing the differences of a reset amount of the magnetic flux due to the differences of the coercive forces of the saturable i...
Switching Power Supply Abstract In an isolation type DC-DC converter for performing full-wave rectification in the secondary of a transformer, two switching sections 11 and 13 alternately switch ON and OFF, thereby reversing the current I3 flowing th...
Switching Power Supply Abstract In an insulating converter transformer of a composite resonance type switching power supply circuit having a secondary active clamp circuit, a primary winding and a secondary winding are wound in a so-called inverse wi...
Switching Power Supply Abstract A direct-current output voltage obtained by rectifying an alternating voltage generated in a secondary winding of an isolating converter transformer PIT is made constant using an active clamp circuit including an auxil...
Switching Power Supply Abstract A switching power supply apparatus has a transformer having a primary winding, a secondary winding and a tertiary winding; a primary switching element connected to the primary winding of the transformer for providing t...
Switching Power Supply Abstract A switching power supply which includes a sychronous rectifier circuit that performs sychronous rectification with a main switching element by using rectifying switching elements. When a current begins to flow into the...
Switching Power Supply Abstract A switching power supply which generates AC power, as opposed to DC power. A transistor opens and closes to thereby generate charge-discharge cycles through an inductor-resistor combination. Each charging current is co...
Switching Power Supply Abstract A switching power supply capable of translating a.c. voltage into d.c. voltage includes a rectifier circuit connected to a pair of a.c. input terminals, a transformer having a primary winding, a rectifying and smoothin...
Switching Power Supply Abstract Current measurement apparatus and methods are disclosed to measure load DC output current on the secondary side of a high frequency transformer in a switched power supply. Current in the primary side of the transformer...
Switching Power Supply Abstract A semiconductor packaging structure comprising a hybrid IC package having at least one IC chip mounted therein is disclosed. The semiconductor packaging structure includes a DC-DC switching power supply mounted within...
Switching Power Supply Abstract A switching power supply device that can reduce switching loss to obtain high efficiency. Additionally, the number of components of control circuits and the cost of switching elements can be reduced, with a transformer...
Switching Power Supply Abstract Regulation of the output voltage of a power supply employing a flyback-type self-oscillating DC--DC converter employing a transformer. The primary winding circuit of the transformer senses a current recirculation loop...