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Class Information
Number: 323/299
Name: Electricity: power supply or regulation systems > Input level responsive
Description: Subject matter which maintains an output at a desired level through the use of control means responsive to the input level.

Sub-classes under this class:

Class Number Class Name Patents
323/300 Phase controlled switching using electronic tube or a three or more terminal semiconductive device 152
323/303 Using a linearly acting final control device 200
323/301 Using a transformer or inductor as the final control device 66

Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
6809678 Data processor controlled DC to DC converter system and method of operation Oct. 26, 2004
6801023 DC/DC boost converter and control method therefor Oct. 5, 2004
6778416 Unregulated voltage converter with independent switching Aug. 17, 2004
6765416 Device for recognizing power sources and associated method Jul. 20, 2004
6735064 Inrush current suppressing device May. 11, 2004
6735098 Inrush current limiting circuit, power source device and power conversion device May. 11, 2004
6717388 Bidirectional converter with input voltage control by a primary switch and output voltage regulation by a secondary switch Apr. 6, 2004
6690144 Open loop inductor current control system and method Feb. 10, 2004
6664770 Wireless power transmission system with increased output voltage Dec. 16, 2003
6650094 Circuit configuration for supplying an electrical consumer and for limiting a time deviation of a switching current of a consumer Nov. 18, 2003
6646842 Inrush current suppression circuit Nov. 11, 2003
6643153 Method and apparatus providing a multi-function terminal for a power supply controller Nov. 4, 2003
6603673 Charge-pump circuit and a load-driving circuit utilizing the same Aug. 5, 2003
6593725 Feed-forward control for DC-DC converters Jul. 15, 2003
6590370 Switching DC-DC power converter and battery charger for use with direct oxidation fuel cell power source Jul. 8, 2003
6587051 Power converting apparatus and burglarproof method therefor Jul. 1, 2003
6580260 PWM feedback control by using dynamic pulse-to-pulse error compensation Jun. 17, 2003
6555995 Extended jacket with video input and output Apr. 29, 2003
6538908 Method and apparatus providing a multi-function terminal for a power supply controller Mar. 25, 2003
6522116 Slope compensation circuit utilizing CMOS linear effects Feb. 18, 2003
6487097 Feedforward clamping applied to the control voltage in switch mode power supplies (SMPS) Nov. 26, 2002
6483281 Low power mode and feedback arrangement for a switching power converter Nov. 19, 2002
6462971 Method and apparatus providing a multi-function terminal for a power supply controller Oct. 8, 2002
6452369 Output Controlled Buck Converter Sep. 17, 2002
6445168 Power output circuit having a pulse-width modulation mode and a permanently closed mode Sep. 3, 2002
6411072 PWM power supply with constant RMS output voltage control Jun. 25, 2002
6392347 Industrial truck with a voltage transformer to supply pulsed DC to a lamp May. 21, 2002
6392210 Methods and apparatus for RF power process operations with automatic input power control May. 21, 2002
6370045 Converter including a fly-back circuit Apr. 9, 2002
6366484 Cross current sensing in power conversion Apr. 2, 2002
6359799 Power factor corrector Mar. 19, 2002
6356464 Method and apparatus providing a multi-function terminal for a power supply controller Mar. 12, 2002
6351073 Self-supplied DC/DC switching power supply Feb. 26, 2002
6335654 Inrush current control circuit Jan. 1, 2002
6320363 Voltage regulator with improved transient response Nov. 20, 2001
6300751 Switching regulator control circuit avoiding break-down of the switching element Oct. 9, 2001
6281668 Switching regulator control circuit of PFM system and switching regulator thereof Aug. 28, 2001
6256385 Power supply adapter circuit Jul. 3, 2001
6242896 Converting available electrical power to desirable electrical power Jun. 5, 2001
6218821 Computer storage system incorporating marginable power supply and power-up bypass circuit Apr. 17, 2001
6204654 Dynamically boosted current source circuit Mar. 20, 2001
6204645 Battery charging controller Mar. 20, 2001
6184668 Voltage sensing circuit and method for preventing a low-voltage from being inadvertently sensed as a high-voltage during power-up or power-down Feb. 6, 2001
6172887 Circuit for supplying power, without the need for a battery, to the electronic control unit of a machine driven by an internal-combustion engine Jan. 9, 2001
6157177 Switched mode power supply for supplying a main and an auxiliary electrical circuit Dec. 5, 2000
6137700 Converter with a high power factor using a DC center point voltage Oct. 24, 2000
6130529 Secondary output holdover circuit for a switch-mode power supply Oct. 10, 2000
6115268 Method and apparatus for supplying uninterrupted power Sep. 5, 2000
6111391 Controller for solar electric generator for recreational vehicles Aug. 29, 2000
6107787 Automobile dashboard light control Aug. 22, 2000

1 2 3 4 5 6 7 8 9 10

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