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| Number | Title | Issue Date |
| 5126930 | Switched mode power supply controller having a stand-by state using a frequency divided burst mode The present invention relates to a power supply device adapted for various electric or/and electric instruments. The present invention generates lower voltages during a standby mode except for power to a microcomputer, using a frequency-dividing circuit a... | 06/30/1992 |
| 5119284 | Efficient power supply post regulation High efficiency, post regulation of auxiliary outputs in multiple output-power supplied is provided by connecting a regulating switching device in parallel with a filter inductor connected in the current path from the rectifiers to the output terminal. Fo... | 06/02/1992 |
| 5103388 | Low harmonic current and fault tolerant power supply A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A ca... | 04/07/1992 |
| 5088019 | Low harmonic current and fault tolerant power supply A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A ca... | 02/11/1992 |
| 5008794 | Regulated flyback converter with spike suppressing coupled inductors Flyback converters can generate multiple voltage levels by rectifying and filtering multiple windings on a single power transformer. Different voltages should be related by the turns ratio of the respective windings. Transformer leakage inductance causes ... | 04/16/1991 |
| 5005112 | Regulated D.C.-D.C. power converter having multiple D.C. outputs A power supply apparatus has a switching device for converting a D.C. input to a high-frequency power; power conversion device for converting the high-frequency power into a plurality of D.C. output powers, a voltage maintaining device for sending a feedb... | 04/02/1991 |
| 4912617 | Switch mode power supply with separately regulated secondary voltage A primary winding of a transformer is coupled to a source of input voltage and to a controllable switch. The switch is responsive to a first control signal for generating output pulses in the transformer secondary windings. A supply circuit is responsive ... | 03/27/1990 |
| 4881014 | Stabilized electric power apparatus for generating direct and alternating current simultaneously in one transformer The present invention comprises a switching circuit which converts direct current electric power into a pulse; an insulative transformer which includes a primary coil for loading a generated pulse, coils for direct and alternating current outputs which ar... | 11/14/1989 |
| 4866591 | Regulated transformer rectifier unit A transformer rectifier unit is provided for developing regulated DC output power from first and second sources of unregulated DC power. The transformer rectifier unit includes a transformer having a primary winding connectable to a source of AC input pow... | 09/12/1989 |
| 4825348 | Resonant power converter with current sharing among multiple transformers A resonant power converter has a plurality of transformers, each having a primary winding and a secondary winding coupled thereto; the primary windings of all of the plurality of transformers are connected in series. The plurality of transformer secondary... | 04/25/1989 |
| 4805078 | Switched power supply for generating a plurality of isolated power voltage for a pulse converter In a protective power supply, several isolated D.C. voltages are generated by separate inductive transformers, the primary windings of which are arranged in parallel in the diagonal branch of a bridge circuit which has electronic switches controlled in pu... | 02/14/1989 |
| 4685020 | Shutdown circuit for blocking oscillator power supply A protective circuit arrangement is provided for shutting down a power supply at the occurrence of a fault condition. The circuit arrangement allows current limiting in a switching transistor during a power on and/or power off cycle, but shuts down the po... | 08/04/1987 |
| 4672516 | Primary side clock single-ended forward converter with connectible secondary circuits and having switchable actual value feed for the output voltage control A single-ended flow converter which is clocked at the primary winding side and which is provided with a controller and monitor and comprises a plurality of switched power packs that are connected by secondary windings and are each composed of an electroni... | 06/09/1987 |
| 4660136 | Single regulation power supply with load compensation of an auxiliary voltage output A single regulation power supply providing load compensation of an auxiliary voltage output, wherein power is transferred from the primary winding of a transformer to a first and a second secondary windings each coupled to a rectifying and filter network ... | 04/21/1987 |
| 4631654 | Two-state switched-mode power supply A switched-mode power supply having at least two output terminals for supplying at least two different voltages and capable of operating in an alternate state in which some of the voltages are reduced. The power supply includes at least two controllable v... | 12/23/1986 |
| 4547843 | Multiple output DC power supply A multiple output DC power supply having a single closed loop control system for two or more power amplifiers which provide matched DC outputs. The control system is responsive to the sum of the DC signals output from the power supply to derive an average... | 10/15/1985 |
| 4459492 | Method for operating a high voltage direct current transmission system including any desired number of transformer stations A method of operating a high voltage DC transmission system with any number of transformer stations. Transformer stations which operate as rectifier stations operate with voltage regulation having a current dependent control input. In the range from 1 per... | 07/10/1984 |
| 4426678 | D.C. to D.C. converter The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter (14) through amplifiers (AO1 -AO6) to a like... | 01/17/1984 |
| 4386394 | Single phase and three phase AC to DC converters A single phase AC to DC power converter is provided which accepts a single AC line input voltage and provides a DC output voltage. Input current feedback is used to control the converter and to provide high quality sinusoidal line currents in phase with t... | 05/31/1983 |
| 4339704 | Series parallel transition for power supply A multi-winding a-c electric power supply is connected to a d-c load circuit via a power rectifier assembly comprising at least two legs connected in parallel across the load circuit. Each leg has at least four serially interconnected unilaterally conduct... | 07/13/1982 |
| 4292665 | Output stage for switching regulated power supply In an output stage for switching regulated power supply, including a step down transformer and a full wave rectifier, significantly increased power output and a small, compact size are achieved by reducing the length of the path through which electrical p... | 09/29/1981 |
| 4239978 | Method and system to supply electrical energy to a self-contained electrical network at multiple voltage level, multiple power range, particularly for mobile application To supply intermittently required high-power loads, such as heater applications in an automotive vehicle, a dual armature winding three-phase alternator has a first or main winding connected to a first or main rectifier bank to supply power to vehicular l... | 12/16/1980 |
| 4084217 | Alternating-current fed power supply An A.C. voltage fed power supply for D.C. gas-discharge lamps is disclosed having full-wave rectifying means connected on the A.C. side to at least two phase-adjusting networks for forming mutually phase-shifted partial currents and connected together on ... | 04/11/1978 |
| 4016478 | High-voltage transformer A component holder is arranged on the windings of a diode-split line transformer. On this holder the diodes, the focus bleeder and the high-voltage bleeder can be arranged. The connection strips of the components act as soldering pins for the winding ends... | 04/05/1977 |
| 3984750 | Alternator-rectifier unit with phase winding and rectifier sets subject to series-parallel switching Separate three-phase windings are connected to individual rectifiers arranged for series-parallel switching to improve the current-voltage output characteristic. The common exciter winding is fed through a voltage regulator. The switching of the rectifier... | 10/05/1976 |
