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Class Information
Number: 323/315
Name: Electricity: power supply or regulation systems > Self-regulating (e.g., nonretroactive) > Using a three or more terminal semiconductive device as the final control device > For current stabilization > Including parallel paths (e.g., current mirror)
Description: Subject matter wherein at least two stabilized current paths are in parallel with each other, usually the currents bearing a predetermined relation to each other.

Sub-classes under this class:

Class Number Class Name Patents
323/316 With amplifier connected to or between current paths 861
323/317 With switched final control device 184

Patents under this class:

Patent Number Title Of Patent Date Issued
8687302 Reference voltage circuit for adaptive power supply Apr. 1, 2014
8674677 Semiconductor integrated circuit, switching power supply, and control system Mar. 18, 2014
8674671 Constant-voltage power supply circuit Mar. 18, 2014
8665029 Oscillator module and reference circuit thereof Mar. 4, 2014
8659864 Power semiconductor device current detector circuit and detection method Feb. 25, 2014
8648586 Circuit for sensing load current of a voltage regulator Feb. 11, 2014
8648585 Circuit including first and second transistors coupled between an outpout terminal and a power supply Feb. 11, 2014
8648584 Multi-hysteresis voltage controlled current source system Feb. 11, 2014
8648580 Regulator with high PSRR Feb. 11, 2014
8618784 Regulator control circuits, switching regulators, systems, and methods for operating switching regulators Dec. 31, 2013
8614570 Reference current source circuit including added bias voltage generator circuit Dec. 24, 2013
8610422 Dynamic biasing of an amplifier using capacitive driving of internal bias voltages Dec. 17, 2013
8604842 High-side switch circuit Dec. 10, 2013
8604826 Bias compensation method and system for minimizing process, voltage and temperature corner variations Dec. 10, 2013
8598862 Startup circuit for low voltage cascode beta multiplier current generator Dec. 3, 2013
8587346 Driving circuit and electronic device using the same Nov. 19, 2013
8587287 High-bandwidth linear current mirror Nov. 19, 2013
8587286 Regulator circuit and RFID tag including the same in wireless communication to improve noise margin Nov. 19, 2013
8583398 Temperature sensing device Nov. 12, 2013
8581760 Digital to analog converter Nov. 12, 2013
8575998 Voltage reference circuit with temperature compensation Nov. 5, 2013
8542060 Constant current circuit Sep. 24, 2013
8536855 Adjustable shunt regulator circuit without error amplifier Sep. 17, 2013
8536853 Data retention secondary voltage regulator Sep. 17, 2013
8525506 Semiconductor integrated circuit Sep. 3, 2013
8519796 Bias generation circuit, power amplifier module, and semiconductor device Aug. 27, 2013
8519694 Switchable current source circuit and method Aug. 27, 2013
8514023 Accurate bias tracking for process variation and supply modulation Aug. 20, 2013
8514011 Impedance transformation with transistor circuits Aug. 20, 2013
8513938 Reference voltage circuit and semiconductor integrated circuit Aug. 20, 2013
8497671 Load driving device with over current protection Jul. 30, 2013
8497667 Fast voltage regulators for charge pumps Jul. 30, 2013
8482266 Voltage regulation circuitry and related operating methods Jul. 9, 2013
8476891 Constant current circuit start-up circuitry for preventing power input oscillation Jul. 2, 2013
8456148 Regulator circuit and RFID tag including the same in wireless communication to improve noise margin Jun. 4, 2013
8450992 Wide-swing cascode current mirror May. 28, 2013
8446141 Bandgap curvature correction circuit for compensating temperature dependent bandgap reference signal May. 21, 2013
8441246 Temperature independent reference current generator using positive and negative temperature coefficient currents May. 14, 2013
8432148 Apparatus and method for a smooth powerup of a reference signal Apr. 30, 2013
8421435 Power supply voltage controlling circuit for use in subthreshold digital CMOS circuit including minute current generator and controlled output voltage generator circuit Apr. 16, 2013
8405447 Semiconductor temperature sensor using bandgap generator circuit Mar. 26, 2013
8405377 Programmable current mirror Mar. 26, 2013
8405376 Low noise reference circuit of improving frequency variation of ring oscillator Mar. 26, 2013
8400185 Driving circuit with zero current shutdown and a driving method thereof Mar. 19, 2013
8400137 Reference voltage generation circuit, drive circuit, light emitting diode head, and image forming apparatus Mar. 19, 2013
8400136 Current mirror semiconductor device and a layout method of the same Mar. 19, 2013
8400124 Startup circuit for self-supplied voltage regulator Mar. 19, 2013
8392779 Interface voltage adjustment based on error detection Mar. 5, 2013
8390491 Buffer to drive reference voltage Mar. 5, 2013
8384471 Bias circuit with high enablement speed and low leakage current Feb. 26, 2013

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