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Class Information
Number: 323/285
Name: Electricity: power supply or regulation systems > Output level responsive > Using a three or more terminal semiconductive device as the final control device > Switched (e.g., switching regulators) > With plural condition sensing
Description: Subject matter including means for sensing a condition of the system or its load, such means being in addition to the means responsive to deviation in the output of the system.

Sub-classes under this class:

Class Number Class Name Patents
323/286 Including filter sensing 182

Patents under this class:

Patent Number Title Of Patent Date Issued
6242896 Converting available electrical power to desirable electrical power Jun. 5, 2001
6232755 Switching voltage regulator that adjusts a timing in response to a load transient May. 15, 2001
6229292 Voltage regulator compensation circuit and method May. 8, 2001
6222745 Digitally synthesized multiple phase pulse width modulation Apr. 24, 2001
6218819 Voltage regulation device having a differential amplifier coupled to a switching transistor Apr. 17, 2001
6218820 Frequency translator usable in a switching DC-DC converter of the type operating as a voltage regulator and as a battery charger, and method of frequency translation therefor Apr. 17, 2001
6215288 Ultra-low power switching regulator method and apparatus Apr. 10, 2001
6204649 PWM regulator with varying operating frequency for reduced EMI Mar. 20, 2001
6201376 Apparatus and method for establishing an operating parameter for a power supply device Mar. 13, 2001
6198259 Non-insulating DC--DC converter Mar. 6, 2001
6198261 Method and apparatus for control of a power transistor in a digital voltage regulator Mar. 6, 2001
6194884 Circuitry for maintaining a substantially constant sense current to load current ratio through an electrical load driving device Feb. 27, 2001
6194885 Boosting active filter system and controller for boosting active filter Feb. 27, 2001
6185082 Protection circuit for a boost power converter Feb. 6, 2001
6181120 Current mode dc/dc converter with controlled output impedance Jan. 30, 2001
6177781 Power-factor improvement device Jan. 23, 2001
6172491 Remote feeding device Jan. 9, 2001
6166528 Lossless current sensing in buck converters working with low duty cycles and high clock frequencies Dec. 26, 2000
6157182 DC/DC converter with multiple operating modes Dec. 5, 2000
6150804 Voltage regulator Nov. 21, 2000
6144194 Polyphase synchronous switching voltage regulators Nov. 7, 2000
6130528 Switching regulator controlling system having a light load mode of operation based on a voltage feedback signal Oct. 10, 2000
6113760 Power supply apparatus for sputtering and a sputtering apparatus using the power supply apparatus Sep. 5, 2000
6115268 Method and apparatus for supplying uninterrupted power Sep. 5, 2000
6100677 Switching controller chip with internal but not external soft start circuitry and DC to DC converter including such a controller chip Aug. 8, 2000
6087814 Power source circuit and electronic device with the same Jul. 11, 2000
6075353 Power circuit for low power solenoid operation using an AC or DC supply Jun. 13, 2000
6066943 Capacitive-summing switch-mode power conversion control May. 23, 2000
6064187 Voltage regulator compensation circuit and method May. 16, 2000
6061259 Protected transformerless AC to DC power converter May. 9, 2000
6058030 Multiple output DC-to-DC converter having enhanced noise margin and related methods May. 2, 2000
6051963 Methods and apparatus for actively snubbing waveforms in switching regulators Apr. 18, 2000
6043636 Voltage transient suppression Mar. 28, 2000
6037754 SMPS with input voltage sensing via boost inductor current sensing Mar. 14, 2000
6034513 System and method for controlling power factor and power converter employing the same Mar. 7, 2000
6034517 High efficiency step-down switching regulators Mar. 7, 2000
6031743 Fault isolation in a redundant power converter Feb. 29, 2000
6028755 DC-to-DC converter capable of preventing overvoltages Feb. 22, 2000
5994885 Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit Nov. 30, 1999
5995393 Latching shutdown and delayed restart of DC power supply in broadband network Nov. 30, 1999
5990668 A.C. power supply having combined regulator and pulsing circuits Nov. 23, 1999
5986902 Integrated protection circuit, method of providing current-limiting and short-circuit protection and converter employing the same Nov. 16, 1999
5982157 Chopper-amplifier for the voltage of a photovoltaic power source, in particular for a timepiece Nov. 9, 1999
5977757 Power supply having automatic voltage sensing Nov. 2, 1999
5973483 Switching mode power supply with over voltage stabilizer Oct. 26, 1999
5973936 Current-voltage regulator Oct. 26, 1999
5969515 Apparatus and method for digital control of a power converter current Oct. 19, 1999
5963024 Switched mode power supply Oct. 5, 1999
5955871 Voltage regulator that bases control on a state of a power conservation mode Sep. 21, 1999
5952817 Apparatus and method using waveform shaping for reducing high frequency noise from switching inductive loads Sep. 14, 1999

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