ClassID:

217849

H02M3/33538 - CPC Classification

Classification description:

Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type

Sub-classes:
Recent Application in this class:
#1
20260045882
2026-02-12

FORWARD CONVERTER HAVING A PRIMARY-SIDE CURRENT SENSE CIRCUIT

#2
20250015723
2025-01-09

Multiple-Input Power Supply and Control Method

#3
20230396172
2023-12-07

FORWARD CONVERTER HAVING A PRIMARY-SIDE CURRENT SENSE CIRCUIT

#4
20230170691
2023-06-01

MULTI-OUTPUT POWER CONVERSION APPARATUS AND METHOD

#5
20230026740
2023-01-26

Multiple-input power supply and control method

#6
20220399821
2022-12-15

LLC converter and control

#7
20220263414
2022-08-18

Forward converter having a primary-side current sense circuit

#8
20220200454
2022-06-23

Large capacity bidirectional isolated DC-DC converter and control method thereof

#9
20210367501
2021-11-25

Systems, methods, and apparatus for dead-time control in resonant converters

#10
20210242785
2021-08-05

Forward converter having a primary-side current sense circuit

#11
20210242783
2021-08-05

System and method for determining a primary switching event in an isolated converter

#12
20200412257
2020-12-31

Primary controller calibration and trimming using secondary controller in secondary-controlled flyback converters

#13
20200412256
2020-12-31

Primary controller calibration and trimming using secondary controller in secondary-controlled flyback converters

#14
20200366218
2020-11-19

Inverter with AC forward bridge and improved DC/DC topology

#15
20200245433
2020-07-30

Forward converter having a primary-side current sense circuit

#16
20200204079
2020-06-25

LLC resonant converter system

#17
20200099292
2020-03-26

Multi-input voltage converter

#18
20200007041
2020-01-02

Boot strap capacitor charging for switching power converters

#19
20190199241
2019-06-27

Resonant inverter

#20
20190166665
2019-05-30

Forward converter having a primary-side current sense circuit

#21
20190165779
2019-05-30

Switching device and power conversion device

#22
20190149042
2019-05-16

Switching DC/DC converter having power output during on and off periods

#23
20190140546
2019-05-09

SWITCHING POWER SUPPLY AND AMPLIFICATION DEVICE

#24
20190140544
2019-05-09

Secondary side current mode control for a converter

#25
20190074692
2019-03-07

Control feedback loop design with fast transient response for multi-level converter

#26
20180351466
2018-12-06

Electrical circuit for delivering power to electronic devices

#27
20180331627
2018-11-15

Secondary side current mode control for a converter

#28
20180309375
2018-10-25

Electronic converter and related method of operating an electronic converter

#29
20180191253
2018-07-05

LLC secondary side control with adaptive on-time

#30
20180166978
2018-06-14

Apparatus and method for controlling pulse width modulation switching frequency

#31
20180034296
2018-02-01

Charging system, charging method, and power adapter

#32
20170358979
2017-12-14

Dynamic sharing average current mode control for active-reset and self-driven synchronous rectification for power converters

#33
20170324344
2017-11-09

Electrical circuit for delivering power to electronic devices

#34
20170310212
2017-10-26

DC/DC converter

#35
20170238382
2017-08-17

Forward converter having a primary-side current sense circuit

#36
20170150640
2017-05-25

Power conversion apparatus

#37
20170141689
2017-05-18

AC/DC converter including a bidirectional switch

#38
20160365802
2016-12-15

Electrical circuit for delivering power to consumer electronic devices

#39
20160301319
2016-10-13

AC/DC converter with neutral voltage lift capacitor

#40
20160301318
2016-10-13

Power supply system with photocoupler drive circuit

#41
20160226385
2016-08-04

DC-DC power converter for use in data communications distributed power architecture

#42
20160211690
2016-07-21

Battery charger with power factor correction

#43
20160111965
2016-04-21

Embedded magnetic component transformer device

#44
20160079868
2016-03-17

Power supply and method for compensating low-frequency output voltage ripple thereof

#45
20160073460
2016-03-10

Forward converter having a primary-side current sense circuit

#46
20160056725
2016-02-25

Control voltage adjusting circuit, feedback signal generating circuit, and control circuit including the same

#47
20160043633
2016-02-11

High voltage power converter with a configurable input

#48
20150333640
2015-11-19

Forward-flyback topology switched mode power supply

#49
20150311811
2015-10-29

Low forward voltage rectifier

#50
20150311807
2015-10-29

Power supply and method for controlling a power supply

#51
20150229220
2015-08-13

Switch control circuit and resonant converter including the same

#52
20150222192
2015-08-06

Electrical circuit for delivering power to consumer electronic devices

#53
20150188440
2015-07-02

Multiple output synchronous power converter

#54
20150180355
2015-06-25

Electrical circuit for delivering power to consumer electronic devices

#55
20150171759
2015-06-18

Forward boost power converters with tapped transformers and related methods

#56
20150138846
2015-05-21

Constant current control circuit for power converter and constant current control method thereof

#57
20150138840
2015-05-21

Power conversion apparatus and power correction method

#58
20150124489
2015-05-07

Current sensing apparatus for resonant tank in an LLC resonant converter

#59
20150122312
2015-05-07

Shadowing compensation device for solar cell module

#60
20150117069
2015-04-30

POWER SUPPLY APPARATUS AND METHOD OF CONTROLLING THE SAME

#61
20150103565
2015-04-16

DC-TO-DC CONVERTER

#62
20150092454
2015-04-02

Interleaved forward converter with wide input and output dynamic range

#63
20150092452
2015-04-02

DC-DC converter

#64
20150069924
2015-03-12

AC/DC power converter

#65
20150016153
2015-01-15

Switching mode power supply using pulse mode active clamping

#66
20150003116
2015-01-01

Control of transformer flux density in an isolated switched mode power supply

#67
20140369086
2014-12-18

Image forming apparatus and a power supply apparatuses for controlling a turn-on timing of a switching element whose output voltage decreases

#68
20140340943
2014-11-20

Active valley fill power factor correction

#69
20140334189
2014-11-13

BI-DIRECTIONAL DC-DC CONVERTER

#70
20140321170
2014-10-30

Integrated primary startup bias and MOSFET driver

#71
20140289548
2014-09-25

Method of forming a detection circuit and structure therefor

#72
20140226367
2014-08-14

Forward-flyback DC-DC converter using resonant LC output circuit

#73
20140198544
2014-07-17

Contactless power supply device

#74
20140185329
2014-07-03

Power supply apparatus

#75
20140185328
2014-07-03

Apparatus and method for avoiding transformer saturation

#76
20140169044
2014-06-19

SELF-EXCITATION PUSH-PULL TYPE CONVERTER

#77
20140140106
2014-05-22

Adaptive dead time control scheme for switch mode power converter with synchronous rectifiers topology

#78
20140133193
2014-05-15

Power control methods for flyback converters based on the current limit and switching frequency

#79
20140118057
2014-05-01

Half bridge flyback and forward

#80
20140098577
2014-04-10

Method to control a minimum pulsewidth in a switch mode power supply

#81
20140098571
2014-04-10

Saturation prevention in an energy transfer element of a power converter

#82
20140092648
2014-04-03

Switch-mode power supply control apparatus and flyback switch-mode power supply including the control apparatus

#83
20140029311
2014-01-30

Synchronous rectifying apparatus and controlling method thereof

#84
20140009085
2014-01-09

Load control device for a light-emitting diode light source

#85
20140009084
2014-01-09

Forward converter having a primary-side current sense circuit

#86
20130258721
2013-10-03

Control device employed in a switched electrical power supply system

#87
20130215648
2013-08-22

Switching power supply device

#88
20130194829
2013-08-01

Inverter output rectifier circuit

#89
20130194027
2013-08-01

Cascode switch with robust turn on and turn off

#90
20130194026
2013-08-01

Half bridge flyback and forward

#91
20130114304
2013-05-09

Apparatus and method for power extraction from high impedance sources

#92
20130113292
2013-05-09

Power supply system, image forming apparatus having the same, and control method of the same

#93
20130107583
2013-05-02

Low forward voltage rectifier

#94
20130088896
2013-04-11

Switching control circuit and switching power supply apparatus including an IC-based switching control circuit

#95
20130063185
2013-03-14

Apparatus and method for pulse width modulation control for switching power converters

#96
20110211371
2011-09-01

Dual drive system for transformer isolated half bridge and full bridge forward converters

#97
20110199802
2011-08-18

SINGLE ENDED POWER CONVERTERS OPERATING OVER 50% DUTY CYCLE

#98
20110176336
2011-07-21

Isolated current regulated DC-DC converter

#99
20110127976
2011-06-02

Multiphase soft-switched DC-DC converter

#100
20110062782
2011-03-17

Extending achievable duty cycle range in DC/DC forward converter with active clamp reset

#101
20110058287
2011-03-10

Method of forming a detection circuit and structure therefor

#102
20110038184
2011-02-17

Isolated AC-DC converter with master controller on secondary side and slave controller on primary side

#103
20110000900
2011-01-06

INVERTER OUTPUT RECTIFIER CIRCUIT

#104
20100188872
2010-07-29

Isolated switching power supply device

#105
20090322293
2009-12-31

Switching converter including a rectifier element with nonlinear capacitance

#106
20090316440
2009-12-24

DC-DC converter

#107
20090257254
2009-10-15

VOLTAGE-CLAMP POWER CONVERTERS

#108
20080239764
2008-10-02

Forward power converter controllers

#109
20080239762
2008-10-02

Forward power converter controllers

#110
20080239761
2008-10-02

Forward power converter controllers

#111
20070159855
2007-07-12

Method and apparatus for extending the operating range of a flyforward converter

#112
20070007933
2007-01-11

Soft-switching DC/DC converter having relatively better effectiveness

#113
20060203523
2006-09-14

Method and apparatus for extending the operating range of a flyforward converter

#114
20060176717
2006-08-10

Analog control ASIC apparatus for high voltage power supply in image forming apparatus and method for controlling high voltage power supply

#115
20050270810
2005-12-08

Method and apparatus for extending the operating range of a flyforward converter

#116
20050189566
2005-09-01

Switching power-supply module

#117
20050152160
2005-07-14

Switching-type power converter

#118
20050105237
2005-05-19

Bi-directionally driven forward converter for neutral point clamping in a modified sine wave inverter

#119
20050029872
2005-02-10

Universal power supply

#120
17012498
2021-12-28

Direct-current (DC) voltage conversion device

#121
16158846
2019-10-08

Hybrid-mode boost power factor corrector and method of operating the same

#122
16142935
2020-04-14

Lighting device with output buffer circuit for stability during no-load or standby operation

#123
15178968
2017-10-03

Dynamic sharing average current mode control for active-reset and self-driven synchronous rectification for power converters

#124
14722171
2016-08-09

Power factor correction system