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Class Information
Number: 363/21.12
Name: Electric power conversion systems > Current conversion > Including d.c.-a.c.-d.c. converter > Having transistorized inverter > Single-ended, separately-driven type > With automatic control of the magnitude of output voltage or current > For flyback-type converter
Description: Subject matter wherein energy from the source of direct current is stored in the inductive device of the inverter when the transistor switch means is conductive, and further wherein the said means for changing intermediate alternating current to a direct-current output (i.e., rectifier) includes means for converting the stored energy to a direct-current output when the transistor switch means is non-conductive.

Sub-classes under this class:

Class Number Class Name Patents
363/21.13 Having digital logic 226
363/21.15 Having feedback isolation (e.g., optoisolator, transformer coupled, etc.) 275
363/21.16 Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.) 382
363/21.17 Having output current feedback 205
363/21.14 Having synchronous rectifier 221
363/21.18 Utilizing pulse-width modulation 417

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8711578 Method of forming a power supply controller and structure therefor Apr. 29, 2014
8693222 DC-DC converter, power supply unit and an information processing apparatus Apr. 8, 2014
8693223 Power converter with zero voltage switching and related control method thereof Apr. 8, 2014
8686761 Gate driver and switching power source apparatus Apr. 1, 2014
8687387 Quasi-resonant controlled switching regulator and the method thereof Apr. 1, 2014
8687392 Power converter with automatic mode switching Apr. 1, 2014
8674627 Isolated flyback converter for light emitting diode driver Mar. 18, 2014
8670248 Primary-side controlled power converter with an RC network and method thereof Mar. 11, 2014
8665612 Constant current controller Mar. 4, 2014
8665614 Control method and device for switching power supplies having more than one control mode Mar. 4, 2014
8659916 Control circuit with ZVS-lock and asymmetrical PWM for resonant power converter Feb. 25, 2014
8654546 Method and apparatus for controlling resonant power converter Feb. 18, 2014
8649191 Synchronous rectifier having phase lock circuit coupled to feedback loop for resonant power converters Feb. 11, 2014
8649192 Power supply with galvanic isolation Feb. 11, 2014
8643302 Switching power-supply device and luminaire Feb. 4, 2014
8644036 Multi-output switching power supply device having a step-up/down converter between a stabilized output and a non-stabilized output Feb. 4, 2014
8630102 Ultra low standby consumption in a high power power converter Jan. 14, 2014
8624516 Power supply apparatus for light emitting diode Jan. 7, 2014
8625312 Asymmetric switch forward converter Jan. 7, 2014
8625311 Switching power supply apparatus including a plurality of switching elements Jan. 7, 2014
8619439 Flyback boost circuit with current supplied to secondary side of transformer circuit prior to boost operation and strobe device using the same Dec. 31, 2013
8619440 Over current protection method used in a switched-mode power supply and related controller Dec. 31, 2013
8611107 Method and system for controlling a multi-stage power inverter Dec. 17, 2013
8611108 Electronic circuit control element with tap element Dec. 17, 2013
8605466 Radiation hardened motor drive stage Dec. 10, 2013
8605468 Switching power supply and image forming apparatus with EMF reduction of the current sense circuit Dec. 10, 2013
8605467 High step-up ratio soft-switched flyback converter Dec. 10, 2013
8599579 Method of controlling a PFC stage operating in boundary conduction mode, a PFC stage, and an SMPS Dec. 3, 2013
8599580 Buck converter Dec. 3, 2013
8599581 Primary-side regulated modulation controller with improved transient response and audile noise Dec. 3, 2013
8593832 Apparatus and method for sensing of isolated output Nov. 26, 2013
8587968 Control circuits and methods for switching mode power supplies Nov. 19, 2013
8587967 System and method for indirect control of a converter output Nov. 19, 2013
8582325 Flyback converter with forward converter reset clamp Nov. 12, 2013
8582324 Pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply Nov. 12, 2013
8582323 Control circuit for a primary controlled switched mode power supply with improved accuracy of the voltage control and primary controlled switched mode power supply Nov. 12, 2013
8576587 Predictive synchronous rectification controller, switching power converter with predictive synchronous rectification controller and controlling method thereof Nov. 5, 2013
8570771 Systems and methods of primary-side sensing and regulation for flyback power converter with high stability Oct. 29, 2013
8564979 Single-stage high-voltage power supply with high efficiency and low network distortion Oct. 22, 2013
8559196 Output voltage control circuit of power converter for light-load power saving Oct. 15, 2013
8553431 Switching power converter with load impedance detection Oct. 8, 2013
8553439 Method and apparatus for determining zero-crossing of an AC input voltage to a power supply Oct. 8, 2013
8541957 Power converter having a feedback circuit for constant loads Sep. 24, 2013
8536851 Quasi-resonant systems and methods with multi-mode control Sep. 17, 2013
8537572 Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing Sep. 17, 2013
8537573 System and method for providing control for switch-mode power supply Sep. 17, 2013
8537574 Power source controlling semiconductor integrated circuit and insulated direct-current power source device Sep. 17, 2013
8537582 Single-stage power supply with power factor correction and constant current output Sep. 17, 2013
8519688 Burst mode controller and method Aug. 27, 2013
8514594 Method and apparatus for controlling power converter output characteristics Aug. 20, 2013

1 2 3 4 5 6 7 8 9 10 11

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