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Richtek Technology Corporation
Richtek Technology Corp
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Richtek Technology Corporation R O C
  

Richtek Technology Corp patents

Recent patent applications related to Richtek Technology Corp. Richtek Technology Corp is listed as an Agent/Assignee. Note: Richtek Technology Corp may have other listings under different names/spellings. We're not affiliated with Richtek Technology Corp, we're just tracking patents.

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Richtek Technology Corp-related inventors




Date Richtek Technology Corp patents (updated weekly) - BOOKMARK this page
05/04/17Micro-electro-mechanical system device
04/20/17Event detection waking up a portable electronic device and action sensor using same
04/20/17High-side power device and manufacturing method thereof
04/13/17Control circuit of power converter and related method
03/23/17Resonant wireless power transmitter circuit and control circuit and control method thereof
02/23/17Lateral double diffused metal oxide semiconductor device and manufacturing method thereof
02/02/17Micro-electro-mechanical system device with electrical compensation and readout circuit thereof
01/19/17Enhanced phase control circuit and a multiphase power converter
01/05/17Control circuit and a power converter
01/05/17Frequency jittering control circuit and a pfm power supply
12/29/16Vertical semiconductor device and manufacturing method thereof
12/22/16Micro-electro-mechanical system (mems) device
12/15/16Linear regulator circuit
12/15/16Frequency-modulated carrier receiver using injection-locked oscillator
12/01/16Power converter and control circuit and standby power saving method thereof
12/01/16Led luminance device and related driver circuit
11/24/16Power converter with synchronous control function and control method thereof
11/17/16Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereof
11/17/16Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereof
11/10/16Mixed mode compensation circuit
11/10/16Mixed mode compensation circuit
11/10/16Mixed mode compensation circuit
11/10/16Mobile device charging system and related adaptive power converter and charging control circuit
11/10/16Flyback power converter and controller and driver thereof
11/03/16Light emitting device driver circuit and control circuit and control method thereof
10/27/16Control circuit and a power converter
10/20/16Ac-to-dc power converter and control method and control integrated circuit thereof
09/29/16Current regulator circuit capable of reducing current ripple and reducing current ripple
09/22/16Driving circuit for driving a led array
09/15/16Circuit and controlling minimum on-time of a flyback power converter during light load operation
09/15/16Power converter, switch control circuit and short circuit detection current sensing resistor of the power converter
09/08/16Mirco-electro-mechanical system device
09/01/16Resonant wireless power receiver circuit and control method thereof
08/18/16Input/output signal processing circuit and input/output signal processing method
08/18/16Linear led driver and control method thereof
07/28/16Control circuit and programming an output voltage of a power converter
07/28/16Power supply circuit with pfc function, and automatic gain control circuit therefor and control method thereof
07/28/16Control circuit and a led driver
07/21/16Linear led driver and control method thereof
07/14/16Wireless power transfer system having positioning function and positioning device and method therefor
06/30/16Control circuit of power converter
06/16/16Mirco-electro-mechanical system device
06/16/16Gamma curve correction a liquid crystal display
06/16/16Flyback converter operating by synchronous rectification with transient protection, primary side control circuit therein, and control method thereof
06/02/16Lateral double diffused metal oxide semiconductor device and manufacturing method thereof
05/26/16Power converter circuit and power limit control circuit thereof
05/19/16Flyback power converter, secondary side control circuit, and control method thereof
05/12/16Mirco-electro-mechanical system (mems) device
05/12/16High efficiency charging system and charging circuit therein
04/21/16Insulated gate bipolar transistor with a lateral gate structure and gallium nitride substrate and manufacturing method thereof
04/14/16Rotation velocity sensor and sensing rotation velocity
04/14/16Flyback power converter with programmable output and control circuit and control method thereof
04/07/16Mems chip and manufacturing method thereof
04/07/16Semiconductor composite film with heterojunction and manufacturing method thereof
04/07/16Light emitting device driver chip
03/10/16Input voltage detection circuit with a parameter setting function applied in a power converter and parameter setting and circuit protecting method thereof
03/10/16Control circuit of power converter and related method
03/10/16Control circuit of power converter
03/10/16Light emitting device driver circuit
02/04/16Abnormal connection detection method
01/28/16Method and circuit for confirming correctness of signal and charging system using same
01/21/16Method of estimating the state of charge of a battery and system thereof
01/21/16Method of estimating the state of charge of a battery and system thereof
01/21/16Input/output signal processing circuit and input/output signal processing method
01/21/16Light emitting device driver circuit and control circuit and control method thereof
Patent Packs
12/24/15Power supply system and short circuit and/or bad connection detection method thereof, and power converter thereof
12/24/15Flyback power supply circuit with programmable function and control method thereof
12/17/15Constant on-time or constant off-time switching power converter and control circuit thereof
12/17/15Transient voltage suppression device and manufacturing method thereof
12/17/15Light emitting device driver circuit and driving light emitting device circuit
12/17/15Retaining circuit and light emitting device driver circuit with retaining circuit
12/10/15Signal processing multiple mirco-electro-mechanical system (mems) devices and combo mems device applying the method
11/26/15Light emitting device driver circuit, current ripple rejecter therein, and current ripple rejection method therefor
11/12/15Flyback power converter and control circuit thereof
10/29/15Flyback power converter and control circuit and control method thereof
10/29/15Single-wire transmission interface and single-wire transmission method and power supply system adopting single-wire transmission method
10/15/15Mirco-electro-mechanical system device
10/08/15Isolated power supply circuit with programmable function and control method thereof
09/24/15Constant current regulator
09/17/15Mirco-electro-mechanical system module and manufacturing method thereof
Patent Packs
09/17/15Mirco-electro-mechanical system pressure sensor and manufacturing method thereof
09/10/15Backlight control circuit with flexible configuration
08/13/15Power management circuit, and control circuit and control method thereof
07/30/15Mems chip and manufacturing method thereof
07/30/15Control supplying power
06/18/15Light emitting device power supply circuit with dimming function and control circuit thereof
06/18/15Light emitting device control circuit with dimming function and control method thereof
06/11/15Power factor correction circuit of power converter
06/11/15Control circuit for power converting circuit
05/28/15Sample rate converter and rate estimator thereof and rate estimation method thereof
05/21/15Lateral double diffused metal oxide semiconductor device and manufacturing method thereof
05/14/15Ohmic contact structure and semiconductor device having the same
05/07/15High voltage device and manufacturing method thereof
04/23/15Wafer level chip scale package device with one or more pre-solder layers and manufacturing method thereof
04/09/15Transient voltage suppression device and manufacturing method thereof
04/02/15Metal oxide semiconductor (mos) device and manufacturing method thereof
04/02/15Semiconductor structure and semiconductor device having the same
03/26/15Insulated gate bipolar transistor and manufacturing method thereof
03/12/15Multi-phase motor control using the same
02/26/15Electrostatic discharge protection device and manufacturing method thereof
02/26/15Manufacturing mirco-electro-mechanical system device and mirco-electro-mechanical system device made thereby
02/12/15Buck switching regulator
02/05/15Bi-directional switching regulator and control circuit thereof
01/29/15High voltage device and manufacturing method thereof
01/22/15Junction barrier schottky diode and manufacturing method thereof
01/22/15Voltage converter circuit and voltage converter controller and parameter setting method therefor
01/01/15Bi-directional switching regulator and control circuit thereof
12/25/14Transient voltage suppressor circuit, and diode device therefor and manufacturing method thereof
12/11/14Bi-directional switching regulator and control circuit thereof
12/04/14Power bank and control supplying power
Social Network Patent Pack
12/04/14Test handler, test carrier and test method thereof
12/04/14Control circuit for ac-dc power converter
11/06/14Apparatus and implementing a multiple function pin in a bcm power supply
11/06/14Control circuit for power converter and method thereof
10/30/14Control supplying power
10/30/14Control circuit for power converter and related control method
10/30/14Switching regulator compatible with electronic transformer and control method thereof
10/23/14Multi-purpose power management chip and power path control circuit
10/23/14Manufacturing junction field effect transistor
10/23/14Protection device and calibration method thereof
Patent Packs
10/09/14Light emitting device power supply circuit and damping circuit therein and driving method thereof
10/02/14Control circuit for dynamically adjusting off time of power switch in power converter
09/25/14Light emitting device driver circuit and control circuit and control method thereof
09/18/14Power converting circuit and control circuit thereof
09/11/14Motor controller
09/11/14Charger circuit and control circuit and control method thereof
09/11/14Power converter control circuit
09/11/14Circuit and improving noise immunity of a single-end level shifter in a floating gate driver
08/28/14Display panel control circuit and multi-chip module thereof
07/31/14Voltage adjusting circuit for amplifier circuit and method thereof
07/31/14Switching regulator and control circuit thereof
07/31/14Pulse width modulation signal generation circuit and pulse width modulation signal generation method
07/24/14Light emitting device power supply circuit, light emitting device control circuit and identifiable light emitting device circuit therefor and identification method thereof
07/24/14Motor controller having multi-functional pin and control method thereof
07/17/14Switching regulator including charge pump
07/10/14Voltage regulator, and control circuit and control method thereof
06/26/14Mixed mode compensation circuit
06/19/14Power converter circuit for low power illumination device, control circuit thereof and method thereof
06/19/14Power converter circuit for low power illumination device, control circuit thereof and method thereof
06/19/14Current control circuit and method
06/12/14High electron mobility transistor and manufacturing method thereof
06/12/14Semiconductor composite film with heterojunction and manufacturing method thereof
06/12/14Charger circuit and charging control method
06/05/14Hybrid high voltage device and manufacturing method thereof
06/05/14Multi-output switching regulator and multi-output power supply method
05/01/14Double diffused metal oxide semiconductor device and manufacturing method thereof
05/01/14Signal peak detector and detection method, and control ic and a pfc converter
05/01/14Double diffused metal oxide semiconductor device and manufacturing method thereof
05/01/14Double diffused metal oxide semiconductor device and manufacturing method thereof
03/27/14Power supply circuit
Patent Packs
03/27/14Charger and charge control circuit for use therein
03/20/14Control circuit and control light emitting device circuit
03/20/14Analog photovoltaic power circuit with auto zero calibration
03/13/14Multipurpose half bridge signal output circuit
03/06/14High electron mobility transistor and manufacturing method thereof
03/06/14Double diffused metal oxide semiconductor device and manufacturing method thereof
03/06/14Charging control circuit
02/27/14Ac-to-dc power converter and control method and control integrated circuit thereof
02/20/14Schottky barrier diode and manufacturing method thereof
02/13/14High voltage device
02/13/14High voltage device and manufacturing method thereof
02/13/14High voltage device and manufacturing method thereof
02/13/14Audio signal processing circuit for reducing zero crossing distortion and method thereof
01/23/14Double diffused drain metal oxide semiconductor device and manufacturing method thereof
01/23/14Multi-phase switching regulator and droop circuit therefor
01/23/14Control circuit for power converter and method thereof
01/16/14Transient voltage suppressor circuit, and diode device therefor and manufacturing method thereof
01/09/14Backlight control circuit with under current detection and start-up control
12/19/13Bleeding circuit and reducing power consumption of an emi filter
12/19/13Method of transmission through single wire
Social Network Patent Pack
12/12/13Buck switching regulator and control circuit thereof
11/28/13Load transient of a cot mode power supply
11/21/13Double diffused drain metal oxide semiconductor device and manufacturing method thereof
11/21/13Double diffused metal oxide semiconductor device and manufacturing method thereof
11/14/13Schottky barrier diode and manufacturing method thereof
11/07/13Multi-chip flip chip package and manufacturing method thereof
11/07/13Control circuit for reducing switching loss of buck-boost converter and related switching regulator
10/17/13Schottky barrier diode and manufacturing method thereof
10/17/13High voltage device and manufacturing method thereof
10/17/13Driver circuit for improving utilization rate of led device and related constant current regulator
10/03/13Vertical semiconductor device and manufacturing method thereof
10/03/13Semiconductor overlapped pn structure and manufacturing method thereof
09/26/13Efficiency improvement of a driver by using serially connected low voltage transistors or dynamic transistor size control
09/26/13Power supply circuit with pfc function, and automatic gain control circuit therefor and control method thereof
09/19/13Switching voltage regulator with multiple power input terminals and related power converter
09/12/13Control circuit for power converter and method thereof
09/12/13Control circuit for power converter and method thereof
09/05/13Floating gate driver with better safe operation area and noise immunity, and level shifting a switch signal
08/29/13Light emitting device driver circuit and control method thereof
08/29/13Light emitting device control circuit and short detection circuit thereof
Social Network Patent Pack
08/22/13High voltage device and manufacturing method thereof
08/15/13Power supply circuit, switching regulator, and control circuit and control method thereof
08/15/13Circuit and improving noise immunity of a single-end level shifter in a floating gate driver
07/18/13Trench schottky barrier diode and manufacturing method thereof
07/11/13Mosfet bridge rectifier
07/11/13Noise reduction using a speaker as a microphone
07/11/13Power efficiency improvement of an audio amplifier by adaptive control of a charge pump
07/04/13Active bleeder circuit triggering triac in all phase and light emitting device power supply circuit and triac control method using the active bleeder circuit
07/04/13Switching regulator and control circuit and control method thereof
07/04/13Self-discharge control for an emi filter capacitor
06/27/13Buck regulation of a boost regulator
06/13/13Compensating led current by led characteristics for led dimming control
05/16/13Active power factor correction circuit and related pfc controller
05/09/13Mixed mode compensation circuit and a power converter
05/09/13Switching regulator and control circuit and control method thereof
05/09/13Power supply control circuit and sensing voltage in the power supply control circuit
04/25/13Wafer level chip scale package device and manufacturing method therof
04/18/13Battery gauge estimation device
03/21/13Power supply circuit and power supply circuit with adaptively enabled charge pump
02/14/13Method and dynamically adjusting a dead time of brushless direct current motor during a phase change
12/06/12Power factor correction circuit, control circuit therefor and driving load circuit through power factor correction
11/15/12Light emitting device current regulator circuit and control method thereof
10/18/12Enhanced phase control circuit and a multiphase power converter
10/04/12Dual mode charge pump
09/27/12Bipolar junction transistor with surface protection and manufacturing method thereof
09/27/12Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof
09/20/12Control circuit for switching voltage regulator
09/13/12Configuration and improving noise immunity of a floating gate driver circuit
08/30/12Control circuit and a ripple regulator system
06/14/12Control circuit and a buck-boost switching converter
Social Network Patent Pack
05/24/12Multi-stage voltage regulating circuit with automatic thermal compensation and regulating method thereof
05/10/12Two-stage power supply with feedback adjusted power supply rejection ratio
05/03/12Isolated scr esd device
05/03/12Bi-directional scr esd device
05/03/12Driving circuit for a three-dimensional liquid crystal lens
03/22/12Power transistor device with electrostatic discharge protection and low dropout regulator using same
01/26/12Constant on-time switching regulator, and control method and on-time calculation circuit therefor
01/19/12Led controller with de-flicker function and led de-flicker circuit and method thereof
01/05/12Single-wire asynchronous serial interface
12/29/11Voltage regulator and control circuit and method therefor
12/15/11Adaptive constant on time adjustment circuit and mathod for adaptively adjusting constant on time
12/08/11Control circuit of switching regulator and control method thereof and transistor device therefor
12/01/11Switching regulator and eliminating beat oscillation
11/24/11Adaptive two-stage voltage regulator and two-stage voltage regulation
10/13/11Wireless remote control lighting unit and wireless remote control lighting system and control method thereof
08/25/11Led array control circuit with voltage adjustment function and driver circuit and the same
07/14/11Circuit and controlling light emitting device, and integrated circuit therefor
05/12/11Multi-color backlight control circuit and multi-color backlight control method
05/12/11Digital dimming device and digital dimming method
03/24/11Isolated scr esd device
03/24/11Bi-directional scr esd device
03/24/11Average current regulator and driver circuit thereof and regulating average current
03/10/11Boundary conduction mode switching regulator and driver circuit and control method thereof
02/17/11Switching regulator with transient control function and control circuit and method therefor
01/20/11Synchronous driver circuit and integrated circuit for use therein
12/09/10Ac power line controlled light emitting device dimming circuit and method thereof
12/02/10Light emitting device driver circuit, light emitting device array controller and control method thereof
12/02/10Tail-less led control circuit
12/02/10Switching regulator and control circuit thereof, and determining on-time in switchng regulator







ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009



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