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Class Information
Number: 323/282
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)
Description: Subject matter wherein the system includes a single final control device which is operated in such manner that it is either conductive or nonconductive.

Sub-classes under this class:

Class Number Class Name Patents
323/283 Digitally controlled 1,096
323/289 With base drive control dissipation 187
323/290 With inductor in control circuit 140
323/285 With plural condition sensing 1,309
323/288 With ramp generator or controlled capacitor charging 581
323/284 With threshold detection 1,599

Patents under this class:

Patent Number Title Of Patent Date Issued
8712621 Vehicle having power supply apparatus Apr. 29, 2014
8711571 Portable multimedia player Apr. 29, 2014
8710814 Systems and methods for switching supply load current estimation Apr. 29, 2014
8704503 Single ended primary inductor converter with over-current and/or over-voltage protection and method for controlling the same Apr. 22, 2014
8704502 Switching mode power supply comprising asynchronous limiter circuit Apr. 22, 2014
8694807 Load control device having a microprocessor for monitoring an internal power supply Apr. 8, 2014
8694194 Vehicular navigation control interface Apr. 8, 2014
8692536 Switching regulator with short-circuit detection circuit Apr. 8, 2014
8686801 Power supply and DC-DC-conversion Apr. 1, 2014
8686705 Current mode synchronous rectification DC/DC converter Apr. 1, 2014
8686702 Negative slope compensation for current mode switching power supply Apr. 1, 2014
8686701 Active wire compensation circuit and controller with the same Apr. 1, 2014
8686700 Boost type power converting apparatus with protection circuit Apr. 1, 2014
8686696 DC-DC converter and semiconductor device Apr. 1, 2014
8680916 High efficiency variable voltage supply Mar. 25, 2014
8680836 Regulating current output from a buck converter without external current sensing Mar. 25, 2014
8675891 Power supply unit with noise reduction capability Mar. 18, 2014
8674728 Power module in which protection for switching element varies in dependence on active operation of the switching element Mar. 18, 2014
8674631 Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus Mar. 18, 2014
8669753 Voltage regulator having a phase compensation circuit Mar. 11, 2014
8669750 Method of forming a semiconductor device and structure thereof Mar. 11, 2014
8665255 Power supply circuit and display device including the same Mar. 4, 2014
8664982 Buck-boost power converter with feed-forward technique for achieving fast line response Mar. 4, 2014
8664927 Voltage regulator Mar. 4, 2014
8664926 DC-DC converter and power supplying system using a DC-DC converter Mar. 4, 2014
8664895 Circuits and methods for driving light sources Mar. 4, 2014
8659919 Circuit to improve light load power factor of power supply Feb. 25, 2014
8659356 Power supply circuit of power amplifier, and terminal Feb. 25, 2014
8659344 Electronic circuit with a regulated power supply circuit Feb. 25, 2014
8659277 Current providing method and current providing system Feb. 25, 2014
8659273 Soft-switching voltage regulation in a step-down circuit Feb. 25, 2014
8653804 Discontinuous conduction current mode maximum power limitation photovoltaic converter Feb. 18, 2014
8653801 Wide input voltage range power factor correction circuit Feb. 18, 2014
8653796 Portable electronic device power manager with current Limit feedback control loop modification for stabilizing an external power supply Feb. 18, 2014
8649194 Electro-magnetic interference reduction circuit for power converters and method thereof Feb. 11, 2014
8648583 Delay block for controlling a dead time of a switching voltage regulator Feb. 11, 2014
8648581 Voltage mode push-pull driver output stage with tunable resistances Feb. 11, 2014
8643354 Multi-phase switching regulator and driver circuit and control method thereof Feb. 4, 2014
8643351 Switching mode power supply and the method thereof Feb. 4, 2014
8643350 Self-driven synchronous rectification boost converter having high step-up ratio Feb. 4, 2014
8643349 Power supply controller and method Feb. 4, 2014
8643345 Combined semiconductor rectifying device and the electric power converter using the same Feb. 4, 2014
8638078 Voltage clamp circuit, a switching power supply device, a semiconductor integrated circuit device, and a voltage level conversion circuit Jan. 28, 2014
8638077 Method for regulating an output voltage of a pulsed-width modulated switching converter Jan. 28, 2014
8638076 Transient processing mechanism for power converters Jan. 28, 2014
8635485 Computer and control method thereof Jan. 21, 2014
8634966 Method, a system, a computer-readable medium, and a power controlling apparatus for applying and distributing power Jan. 21, 2014
8634211 Switch control device, power supply device comprising the same and switch control method Jan. 21, 2014
8633682 Switching power supply controller with selective feedback sampling and waveform approximation Jan. 21, 2014
8633681 Voltage regulator and voltage regulation method Jan. 21, 2014

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