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Class Information
Number: 323/259
Name: Electricity: power supply or regulation systems > Output level responsive > Using a transformer or inductor as the final control device > Having a winding in series with the source and load (e.g., buck-boost)
Description: Subject matter wherein the load current is conducted from the source to the load through a winding of the transformer.

Sub-classes under this class:

Class Number Class Name Patents
323/262 Plural windngs in series 34
323/263 With electronic tube or a three or more terminal semiconductive device in control circuit 45
323/260 With motor in control circuit 16
323/261 With saturable reactor in control circuit 9

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8705254 Single-phase and three-phase dual buck-boost/buck power factor correction circuits and controlling method thereof Apr. 22, 2014
8669744 Adaptive control of switching losses in power converters Mar. 11, 2014
8659272 Bidirectional boost-buck DC-DC converter Feb. 25, 2014
8653801 Wide input voltage range power factor correction circuit Feb. 18, 2014
8648579 Supply circuit with ripple compensation Feb. 11, 2014
8648577 DC-DC converter Feb. 11, 2014
8634966 Method, a system, a computer-readable medium, and a power controlling apparatus for applying and distributing power Jan. 21, 2014
8614555 System and method for energy capture and distribution Dec. 24, 2013
8614566 DC-DC converter Dec. 24, 2013
8593116 Switched-mode power supply including switch protection circuit Nov. 26, 2013
8570005 Direct current link circuit Oct. 29, 2013
8564259 Clock phase shifter for use with buck-boost converter Oct. 22, 2013
8564991 Enhanced one cycle control for power factor correction Oct. 22, 2013
8547072 Phase control apparatus Oct. 1, 2013
8525495 Input current generator for buck-boost circuit control Sep. 3, 2013
8519683 DC-DC converter Aug. 27, 2013
8461813 Method and device for controlling a configurable power supply to provide AC and/or DC power output Jun. 11, 2013
8441237 Power factor correction (PFC) circuit and method therefor May. 14, 2013
8436591 Buck-boost converter with smooth transitions between modes May. 7, 2013
8436592 Voltage buck-boost switching regulator May. 7, 2013
8436593 Wide input voltage range power factor correction circuit May. 7, 2013
8410763 Controller for buck and boost converter Apr. 2, 2013
8395363 High voltage generation circuit, puncture device, and blood test device Mar. 12, 2013
8395368 Adaptive voltage position DC-DC regulators and the method thereof Mar. 12, 2013
8368365 Continuously switching buck-boost control Feb. 5, 2013
8354827 Controller for a buck-boost circuit Jan. 15, 2013
8350543 Control circuitry in a DC/DC converter for zero inductor current detection Jan. 8, 2013
8352091 Distributed grid-interactive photovoltaic-based power dispatching Jan. 8, 2013
8310217 Power conversion circuit for decentralizing input current Nov. 13, 2012
8305055 Non-inverting buck boost voltage converter Nov. 6, 2012
8305061 Apparatus and method for digitally controlled buck-boost switching regulator Nov. 6, 2012
8299747 Single-stage zero-current switching driving circuit for ultrasonic motor Oct. 30, 2012
8299739 Motor drive Oct. 30, 2012
8274266 Switch mode power supply with dynamic topology Sep. 25, 2012
8269471 Method for DC/DC conversion and DC/DC converter arrangement including four switching phases Sep. 18, 2012
8237417 DC-DC converter, DC-DC converter control method, and electronic device Aug. 7, 2012
8228690 DC-DC converter and power supplying system including same Jul. 24, 2012
8217633 Voltage step-up/step-down switching regulator and control method thereof Jul. 10, 2012
8198881 Chopper type DC-DC converter Jun. 12, 2012
8193788 Method and device for controlling a configurable power supply to provide AC and/or DC power output Jun. 5, 2012
8174249 Voltage boosting/lowering circuit May. 8, 2012
8143743 Uninterruptible power supply apparatus Mar. 27, 2012
8134329 Buck converter with improved filter design Mar. 13, 2012
8120265 Lamp driver for operating a gas discharge lamp Feb. 21, 2012
8103892 Power management apparatus with buck boost converter module Jan. 24, 2012
8093874 Method and system for adding boost functionality to a buck switcher with minimal cost Jan. 10, 2012
8089254 Digital control of power converters Jan. 3, 2012
8085011 Boost regulator using synthetic ripple regulation Dec. 27, 2011
8018212 Buck-boost regulator Sep. 13, 2011
7956586 Step-up/step-down type DC-DC converter, and control circuit and control method of the same Jun. 7, 2011

1 2 3 4

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