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Class Information
Number: 323/268
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
Description: Subject matter wherein the system includes a plurality of transistors or semiconductor controlled rectifiers, each contributing to the final control of the output.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7583120 |
Power supply controller and method therefor |
Sep. 1, 2009 |
| 7576521 |
Switching regulator |
Aug. 18, 2009 |
| 7567047 |
Electric motor control strategies for using a low resolution position sensor |
Jul. 28, 2009 |
| 7550954 |
Method and circuit for a voltage supply for real time clock circuitry based on voltage regulated charge pump |
Jun. 23, 2009 |
| 7550955 |
Power supply circuit |
Jun. 23, 2009 |
| 7548043 |
Power supply apparatus and method for providing voltage |
Jun. 16, 2009 |
| 7538453 |
Fan power supply system |
May. 26, 2009 |
| 7525294 |
High-voltage regulator system compatible with low-voltage technologies and corresponding electronic circuit |
Apr. 28, 2009 |
| 7521907 |
Controller for a power converter and method of operating the same |
Apr. 21, 2009 |
| 7518346 |
Buck-boost DC/DC converter with overlap control using ramp shift signal |
Apr. 14, 2009 |
| 7508176 |
Controller for a DC to DC converter having linear mode and switch mode capabilities |
Mar. 24, 2009 |
| 7508177 |
Method and circuit for reducing regulator output noise |
Mar. 24, 2009 |
| 7504807 |
Switching regulator with voltage step up or pass in standby mode and with voltage step up/step down in normal operation mode |
Mar. 17, 2009 |
| 7501803 |
Synchronized boost signal apparatus and method |
Mar. 10, 2009 |
| 7495420 |
LDO with slaved switching regulator using feedback for maintaining the LDO transistor at a predetermined conduction level |
Feb. 24, 2009 |
| 7489118 |
Method and apparatus for high-efficiency DC stabilized power supply capable of effectively reducing noises and ripples |
Feb. 10, 2009 |
| 7482796 |
Switching regulator, power supply circuit and secondary cell charging circuit including the same |
Jan. 27, 2009 |
| 7477084 |
Multi-phase power supply controller and method therefor |
Jan. 13, 2009 |
| 7463500 |
Monopolar DC to bipolar DC to AC converter |
Dec. 9, 2008 |
| 7456619 |
Power supply circuit |
Nov. 25, 2008 |
| 7456625 |
Electric circuit |
Nov. 25, 2008 |
| 7449869 |
Digital current mode controller with low frequency current sampling |
Nov. 11, 2008 |
| 7432691 |
Method and apparatus for controlling power drawn from an energy converter |
Oct. 7, 2008 |
| 7432692 |
Circuit and method for changing transient response characteristics of a DC/DC converter module |
Oct. 7, 2008 |
| 7420354 |
Method and apparatus for controlling power drawn from an energy converter |
Sep. 2, 2008 |
| 7400120 |
Constant voltage control device |
Jul. 15, 2008 |
| 7397151 |
Power supply unit and portable apparatus using the same |
Jul. 8, 2008 |
| 7385377 |
Voltage down-converter with reduced ripple |
Jun. 10, 2008 |
| 7375502 |
Secure supply of an integrated circuit |
May. 20, 2008 |
| 7365523 |
Scrambling of the current signature of an integrated circuit |
Apr. 29, 2008 |
| 7362078 |
Power supply circuit |
Apr. 22, 2008 |
| 7332898 |
Double-edge, stackable PWM with built-in feedforward |
Feb. 19, 2008 |
| 7319311 |
Step down switching regulator with the substrate of the switching transistor selectively connected to either its drain or source |
Jan. 15, 2008 |
| 7292015 |
High efficiency, high slew rate switching regulator/amplifier |
Nov. 6, 2007 |
| 7280000 |
Apparatus and method for reducing power consumption within an oscillator |
Oct. 9, 2007 |
| 7274180 |
Constant voltage outputting method and apparatus capable of changing output voltage rise time |
Sep. 25, 2007 |
| 7256571 |
Power supply dynamic set point circuit |
Aug. 14, 2007 |
| 7253594 |
Reducing power/area requirements to support sleep mode operation when regulators are turned off |
Aug. 7, 2007 |
| 7248027 |
Power converters in which the input power coupling times are adjusted in conjunction with cycle skip counts |
Jul. 24, 2007 |
| 7244007 |
Capacitive load driving circuit, droplet ejection device, droplet ejection unit and inkjet head driving circuit |
Jul. 17, 2007 |
| 7233131 |
Circuit and method for implementing a multi-function pin on a PWM controller chip in a voltage converter |
Jun. 19, 2007 |
| 7215102 |
Semi-clockless, cascaded, current-mode power regulator having high noise immunity and arbitrary phase count |
May. 8, 2007 |
| 7202646 |
Control interface with droop compensation |
Apr. 10, 2007 |
| 7180276 |
Dual stage voltage regulation circuit |
Feb. 20, 2007 |
| 7170266 |
Balanced, floating, spread-spectrum pulse width modulator circuit |
Jan. 30, 2007 |
| 7170308 |
On-chip voltage regulator using feedback on process/product parameters |
Jan. 30, 2007 |
| 7157889 |
Sample and hold system for controlling a plurality of pulse-width-modulated switching power converters |
Jan. 2, 2007 |
| 7148665 |
Power supplying methods and apparatus that provide stable output voltage |
Dec. 12, 2006 |
| 7138788 |
Switch controller for a power control system and method therefor |
Nov. 21, 2006 |
| 7135841 |
Emulated inductor current automatic correction without knowledge of actual inductor current ramp for emulated peak control mode PWM |
Nov. 14, 2006 |
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