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Class Information
Number: 323/271
Name: Electricity: power supply or regulation systems > Output level responsive > Using a three or more terminal semiconductive device as the final control device > Including plural final control devices > Switched (e.g., on-off control)
Description: Subject matter wherein the plural devices are operated such that they are either conductive or nonconductive.


Sub-classes under this class:

Class Number Class Name Patents
323/272 Parallel connected 374


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

Patent Number Title Of Patent Date Issued
7615974 High dimming ratio LED drive circuit Nov. 10, 2009
7615976 Switching circuit of power converter having voltage-clipping device to improve efficiency Nov. 10, 2009
7615982 Power converter able to rapidly respond to fast changes in load current Nov. 10, 2009
7612545 DC/DC converter Nov. 3, 2009
7613442 Switch circuit and method of switching radio frequency signals Nov. 3, 2009
7602160 Method and apparatus providing protection for power converter Oct. 13, 2009
7598715 Apparatus and method for reverse current correction for a switching regulator Oct. 6, 2009
7595569 Versatile and intelligent power controller Sep. 29, 2009
7595624 Slope compensation for switching regulator Sep. 29, 2009
7589506 Signal-to-noise improvement for power loss minimizing dead time Sep. 15, 2009
7589511 DC-DC voltage converter Sep. 15, 2009
7579816 Single feedback input for regulation at both positive and negative voltage levels Aug. 25, 2009
7576522 Circuit and method for soft start of a switching regulator from a residual voltage Aug. 18, 2009
7570034 Step-up/down DC-DC converter Aug. 4, 2009
7567066 Integrated switch with internally adjusted conduction time Jul. 28, 2009
7567047 Electric motor control strategies for using a low resolution position sensor Jul. 28, 2009
7564232 Charging circuit and control method and integrated circuit utilizing the same Jul. 21, 2009
7560910 Voltage converter and semiconductor integrated circuit Jul. 14, 2009
7560911 Step-up/step-down switching regulator Jul. 14, 2009
7550956 Apparatus, system, and method for dynamic loss compensation for voltage converters Jun. 23, 2009
7545134 Power supply controller and method therefor Jun. 9, 2009
7545133 Power supply apparatus Jun. 9, 2009
7541788 Switching regulator and method for switching output voltage thereof Jun. 2, 2009
7538526 Switching regulator, and a circuit and method for controlling the switching regulator May. 26, 2009
7528588 Method and circuit for limiting output voltage in a switched-mode power supply and a switched-mode power supply May. 5, 2009
7529109 Driving circuit for switching DC power May. 5, 2009
7529532 Switch circuit and method of switching radio frequency signals May. 5, 2009
7514908 Switching power supply device and a semiconductor integrated circuit Apr. 7, 2009
7511463 Multiple output buck converter Mar. 31, 2009
7508178 Delay compensation for hysteretic control Mar. 24, 2009
7506184 Current detection for microelectronic devices using source-switched sensors Mar. 17, 2009
7501802 DC-DC converting method and apparatus Mar. 10, 2009
7498791 Reverse current preventing circuit and method Mar. 3, 2009
7498782 Computer systems and voltage regulator circuits with toroidal inductors Mar. 3, 2009
7495423 Apparatus and method for loop adjustment for a DC/DC switching regulator Feb. 24, 2009
7492133 Semiconductor device configured to complementarily control on/off of a high-side switching element Feb. 17, 2009
7492135 Switching converter Feb. 17, 2009
7489198 Linear regulating switch Feb. 10, 2009
7486060 Switching voltage regulator comprising a cycle comparator for dynamic voltage scaling Feb. 3, 2009
7482793 Ripple generation in buck regulator using fixed on-time control to enable the use of output capacitor having any ESR Jan. 27, 2009
7482791 Constant on-time regulator with internal ripple generation and improved output voltage accuracy Jan. 27, 2009
7479771 Current detection circuit and switching power supply Jan. 20, 2009
7479770 System and method for driving a power field-effect transistor (FET) Jan. 20, 2009
7479769 Power delivery system having cascaded buck stages Jan. 20, 2009
7477084 Multi-phase power supply controller and method therefor Jan. 13, 2009
7477048 Boosting switching regulator Jan. 13, 2009
7466113 Break-before-make sensing for drivers Dec. 16, 2008
7466573 Method and apparatus for integrated active-diode-ORing and soft power switching Dec. 16, 2008
7456619 Power supply circuit Nov. 25, 2008
7449868 Current controlled gate driver for power switches Nov. 11, 2008

1 2 3 4 5 6 7 8


 
 
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