1
Balu Balakrishnan: Three-terminal switched mode power supply integrated circuit. Power Integrations, Thomas E Schatzel, May 17, 1994: US05313381 (145 worldwide citation)

An embodiment of the present invention is a three-terminal switched mode power supply chip with a signal terminal for accepting a combination of a feedback control signal and bias supply voltage to operate the chip. A feedback extraction circuit separates the feedback signal from the power supply vo ...


2
Richard A Faulk, J Howard Ho: Reciprocating converter. Compaq Computer Corporation, Robert Groover, Betty Formby, Matthew S Anderson, June 16, 1998: US05768118 (138 worldwide citation)

A power converter which transfers energy from an output circuit coupled to a secondary winding of a power transformer to an input circuit coupled to a primary winding of the power transformer in order to reduce the power loss and electromagnetic interference (EMI) originating from a primary switch. ...


3
Michael Brand, Thomas Kirk Dougherty, John J Drab, Brian M Pierce: Fixed frequency regulation circuit employing a voltage variable dielectric capacitor. Raytheon Company, Leonard A Alkov, Glenn H Lenzen Jr, August 8, 2000: US06101102 (123 worldwide citation)

Frequency regulating apparatus comprising a high power, voltage variable dielectric varactor or capacitor (or ferroelectric voltage variable dielectric capacitor) for use as a control element in the regulation circuit that actively tunes a resonant network to modulate power delivered to a load. The ...


4
Balu Balakrishnan: High frequency switched mode converter. Power Integrations, Thomas E Schatzel, November 3, 1992: US05161098 (104 worldwide citation)

A small, lightweight, efficient, very low cost AC adaptor for consumer electronics applications is realized by combining a switching regulator integrated circuit along with a leadframe adapted to mount the switching regulator integrated circuit off-center, a single-sided printed circuit board and hi ...


5
Hirohisa Yamamura, Osamu Suzuki, Akio Yasukawa, Nobunori Matsudaira: Inverter device with cooling arrangement therefor. Hitachi, Evenson McKeown Edwards & Lenahan P L L C, December 26, 2000: US06166937 (102 worldwide citation)

IGBT modules, bus bars and capacitors in an inverter main circuit are secured on the front face of a heat sink and at the back side of the heat sink a water cooling channel is formed to cool the IGBT modules. The bus bars and the capacitor, thereby the size of an inverter device used in an electric ...


6
Giovanni Jaramillo, Jose M Aleman: Voltage convertor for a portable electronic device. Motorola, James A Lamb, November 18, 1997: US05689413 (100 worldwide citation)

A portable electronic device holster (105) includes an AC voltage convertor (115) having at least two AC prongs (102) extending therefrom. The AC voltage convertor (115) is captured within the holster (105) and can be extended and retracted. When a portable electronic device is inserted in the porta ...


7
Stan S Hahn, Sung Kee Baek: Universal linear power supply. Advanced Mobile Solutions, Nathan P Crosby Heafey Roach & May Koenig, October 26, 1999: US05973948 (97 worldwide citation)

A universal linear power supply capable of automatically supplying a regulated DC current output from a range of AC input. In one preferred embodiment, interchangeable modular electrical plugs configured to mate with standard AC supplies releasably connect with the power supply. The power supply cir ...


8
Lee I Silberkleit, David R Perchlik, Jason E Douglass: Integrated planar magnetics and connector. Interpoint Corporation, Seed & Berry, May 20, 1997: US05631822 (89 worldwide citation)

The present invention provides a magnetics substrate for implementing a coupled transformer and inductor. In one version, the transformer and inductor are used in a DC to DC converter. The transformer includes primary and secondary windings, each comprising a set of planar windings coupled to one an ...


9
Tamas S Szepesi: Regulated switched power circuit with resonant load. National Semiconductor Corporation, Gail W Woodward, Paul J Winters, Michael J Pollock, August 13, 1985: US04535399 (89 worldwide citation)

A switching circuit is employed to control the flow of energy from a power source to a tuned load. The control is achieved by means of a pulse width control voltage. The load current is sensed and fed to a phase locked loop which contains an oscillator producing an output that is slightly above load ...


10
Stan S Hahn: Interchangeable plug power supply with automatically adjusting input voltage receiving mechanism. Advanced Mobile Solutions, Adam H Crosby Heafey Roach & May Tachner, November 4, 1997: US05684689 (88 worldwide citation)

A power supply with interchangeable plug capacity and interchangeable power input modules includes a casing, an electrical plug detachably mounted in the casing, allowing the user to accommodate various power source configurations and voltage supply levels without manually setting the unit for the a ...