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Class Information
Number: 363/21.04
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 forward-type converter
Description: Subject matter wherein the means for changing intermediate alternating current to a direct-current output is constructed and arranged, with respect to the inductive device of the inverter, to output direct-current when the transistor switch means is conductive.

Sub-classes under this class:

Class Number Class Name Patents
363/21.05 Having digital logic 122
363/21.07 Having feedback isolation (e.g., optoisolator, transformer coupled, etc.) 184
363/21.08 Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.) 209
363/21.09 Having output current feedback 150
363/21.06 Having synchronous rectifier 275
363/21.1 Utilizing pulse-width modulation 266

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8693215 DC/DC converter with magnetic flux density limits Apr. 8, 2014
8687390 Active clamp DC-DC converter Apr. 1, 2014
8670247 Isolated DC-DC converter with active clamp circuit Mar. 11, 2014
8659915 Valley-detection device for quasi-resonance switching and method using the same Feb. 25, 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
8638580 Switching power converters and controllers having auxiliary power circuits Jan. 28, 2014
8625311 Switching power supply apparatus including a plurality of switching elements Jan. 7, 2014
8619437 Switching power supply device having a controller to calculate the duty rate and output current Dec. 31, 2013
8614615 Energy transfer assembly with tuned leakage inductance and common mode noise compensation Dec. 24, 2013
8610410 Dual drive system for transformer isolated half bridge and full bridge forward converters Dec. 17, 2013
8611108 Electronic circuit control element with tap element Dec. 17, 2013
8611107 Method and system for controlling a multi-stage power inverter Dec. 17, 2013
8605463 Resonant switching power supply device to reduce a frequency increase in light loads Dec. 10, 2013
8593832 Apparatus and method for sensing of isolated output Nov. 26, 2013
8593830 Reverse current limit protection for active clamp converters Nov. 26, 2013
8593835 Duty balancing oscillator Nov. 26, 2013
8587967 System and method for indirect control of a converter output Nov. 19, 2013
8582322 Power reduction of a power supply unit at light loading or no loading Nov. 12, 2013
8542508 Forward converter transformer saturation prevention Sep. 24, 2013
8467199 Two-stage insulated bidirectional DC/DC power converter using a constant duty ratio LLC resonant converter Jun. 18, 2013
8456869 AC/DC converter having isolating transformer with three secondary windings Jun. 4, 2013
8451630 Reset voltage circuit for a forward power converter May. 28, 2013
8451626 Gate driver power and control signal transmission circuits and methods May. 28, 2013
8446134 High efficiency AC/DC power supply May. 21, 2013
8427848 Variable time clamp for a power supply controller Apr. 23, 2013
8411468 Power converters Apr. 2, 2013
8406016 Power supply circuit and information processing apparatus for power factor correction and stable power supply Mar. 26, 2013
8395915 DC/DC converter Mar. 12, 2013
8379413 Circuits and methods for controlling power converters including transformers Feb. 19, 2013
8363438 Multi-output buck converting apparatus with controllable energy-releasing function Jan. 29, 2013
8355266 Apparatus and method for sensing of isolated output Jan. 15, 2013
8331116 Forward converter transformer saturation prevention Dec. 11, 2012
8305004 Apparatus and method for constant power offline LED driver Nov. 6, 2012
8300430 Compensation device for synchronous rectifier control and method thereof Oct. 30, 2012
8300432 Power converter utilizing a RC circuit to conduct during the rising edge of the transformer voltage Oct. 30, 2012
8264858 Electronic circuit control element with tap element Sep. 11, 2012
8259469 Current ripple reduction power conversion circuits Sep. 4, 2012
8254149 Power supply module providing feedback voltage stabilization to eliminate inductor spike Aug. 28, 2012
8233292 Controllers, systems and methods for controlling power of light sources Jul. 31, 2012
8213190 Single-stage isolated high power factor AC/DC converter with leakage inductor energy recovery function Jul. 3, 2012
8198880 Constant on-time converter and the method of operation Jun. 12, 2012
8194420 Method for controlling a switching regulator and related switching regulator Jun. 5, 2012
8194419 Switching mode power supply for reducing standby power Jun. 5, 2012
8179699 Method for controlling a switching regulator and related switching regulator May. 15, 2012
8144487 Apparatus and method for sensing of isolated output Mar. 27, 2012
8144484 Electronic circuit control element with tap element Mar. 27, 2012
8130517 Forward converter transformer saturation prevention Mar. 6, 2012
8102676 Compensating for cord resistance to maintain constant voltage at the end of a power converter cord Jan. 24, 2012
8102679 Utilization of a multifunctional pin to control a switched-mode power converter Jan. 24, 2012
8089791 Compensation circuit and compensation method for current mode power converters Jan. 3, 2012

1 2 3 4 5 6

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