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System General Corp
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System General Corp patents

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

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | System General Corp-related inventors




Date System General Corp patents (updated weekly) - BOOKMARK this page
05/21/15Under-voltage protection circuit for programmable power supplies
04/30/15Programmable current limit circuit for a programmable power supply
03/05/15Synchronous rectifier control circuits of power converters
02/05/15Method and apparatus of frequency modulation for power saving of adaptive power converter
01/01/15Control circuit for active-clamp flyback power converter with programmable switching period
09/25/14Programmable power supply
08/28/14Apparatus for charging battery through programmable power adapter
08/28/14Control circuit for charging battery through programmable power supplier
07/31/14Single-stage pfc converter with constant voltage and constant current
07/10/14Primary-side controlled programmable power converter
07/03/14Active clamp circuits for flyback power converters
06/26/14Method and controlling programmable power converter
05/01/14Charge pump circuits having frequency synchronization with switching frequency of power converters
01/02/14Control circuit with frequency hopping for permanent magnet motor control
11/14/13Electro-magnetic interference reduction circuit for power converters and method thereof
09/26/13Digital controlled power converter with embedded microcontroller
09/19/13Controller with power saving for power converters and the same
08/29/13Digital control circuit for resonant power converters
07/18/13Electro-magnetic interference reduction circuit for power converters and the same
06/13/13Switching current synthesis circuit for power converter
06/06/13Adaptive frequency compensation for pfc power converter operating in ccm and dcm
04/18/13Control circuit for offline power converter without input capacitor
03/14/13Controller and power converter using the same for clamping maximum switching current of power converter
02/28/13Monolithic high-side switch control circuits
01/31/13Switching controller for flyback power converters without input capacitor
12/06/12High-side signal sensing circuit
09/27/12Control circuit and control dimming led lighting circuit
09/13/12Switching controller with valley-lock switching and limited maximum frequency for quasi-resonant power converters
08/23/12Adaptive filter circuit for sampling a reflected voltage of transformer in a power converter and method thereof
08/16/12Multi-function terminal of power supply controller for feedback signal input and over-temperature protection
08/16/12Control circuit for burst switching of power converter and method thereof
07/05/12Primary-side controlled power converter with an rc network and method thereof
07/05/12Single-stage pfc converter with constant voltage and constant current
05/10/12Method and apparatus of providing over-temperature protection for power converters
04/05/12Controller with valley switching and limited maximum frequency for quasi-resonant power converters
03/22/12Correction circuit of a switching-current sample for power converters in both ccm and dcm operation
02/23/12Motor rotor and motor having the motor rotor
02/09/12High-side synchronous rectifier circuits and control circuits for power converters
02/02/12Motor rotor and motor having the motor rotor
12/15/11Switching control circuits with valley lock for power converters
12/01/11Method and apparatus to improve dynamic response of the synchronous rectifying for resonant power converters
11/03/11Method and apparatus of operating a primary-side-regulation power converter at both continuous current mode and discontinuous current mode
10/20/11Constant-speed control circuit for bldc motors
10/20/11High-speed reflected signal detection for primary-side controlled power converters
02/17/11Parallel connected pfc converter
02/17/11Switching regulator having terminal for feedback signal inputting and peak switching current programming
12/09/10Mounting structure for an electronic element
09/16/10Semiconductor devices and formation methods thereof
09/16/10Dual-switches flyback power converter with self-excited supply to power the high-side driver
08/12/10Synchronous rectifier having phase lock circuit coupled to feedback loop for resonant power converters
08/12/10Asymmetrical resonant power converters
08/12/10Flyback power converters
07/22/10Switching circuit for primary-side regulated resonant power converters
07/08/10Offline synchronous rectifier circuit with turned-on arbiter and phase-lock for switching power converters
05/20/10Power management interface
05/06/10Motor structure and fan
01/14/10Over-torque control circuit for bldc motors
01/14/10Buck-boost pfc converters
12/17/09Sensor fastening method and sensor fastening frame for use therewith
12/17/09End cover and motor rotor having the end cover
12/17/09Control circuit with dual programmable feedback loops for bldc motors
12/17/09Method and measuring the switching current of power converter operated at continuous current mode
08/27/09Method and apparatus of providing synchronous regulation circuit for offline power converter
08/27/09Switching controller capable of reducing acoustic noise for power converters
08/06/09Motor rotor
Patent Packs
04/30/09Synchronous rectifying for soft switching power converters
04/09/09Control circuit for multi-phase, multi-channels pfc converter with variable switching frequency
04/09/09Method and synchronous rectifying of soft switching power converters
01/14/10Buck-boost pfc converters
01/19/17Start-up circuit to discharge emi filter for power saving of power supplies
01/05/17Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof
12/24/15System, method and apparatus of sensor-less field oriented control for permanent magnet motor
10/22/15Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof
09/17/15Led drive circuit with a programmable input for led lighting
04/30/15Programmable frequency decrease circuit for a programmable power supply
03/05/15Control circuit for driving motor and controlling speed of motor
02/19/15Method for controlling synchronous rectifier of power converter and control circuit using the same
02/12/15Control circuit of power converter and method therefore
12/18/14Method and selecting the output of programmable power adapter
10/16/14Method and controlling wireless induction power supply
Patent Packs
10/16/14Control circuit for active clamp flyback power converter with predicted timing control
09/18/14Method of controlling synchronous rectifier for power converter, control circuit, and power converter thereof
08/21/14Led drive circuit with a programmable input for led lighting
08/21/14Adaptive active clamp of flyback power converter with high efficiency for heavy load and light load
07/17/14Method and controlling programmable power converter with low standby power loss
07/10/14Circuit with synchronous rectifier for controlling programmable power converter
07/10/14Control circuit for programmable power supply
05/29/14Dual gate drive circuit for reducing emi of power converters and control method thereof
05/29/14Transistor gate driver with charge pump circuit for offline power converters
05/08/14Control circuit of power converter with temperature control and controlling power converter
04/17/14Method and detecting position and startup a sensorless motor
04/03/14Control circuit and terminal for cable compensation and wake-up of primary-side regulated power converter
02/13/14Control circuit with deep burst mode for power converter
02/06/14Sensorless motor apparatus, back emf detector and detection method thereof
02/06/14Control circuit with fast dynamic response for power converters
01/09/14Control circuit and controlling power converter
12/12/13Digital power control circuit for power converter and control circuit for power converter
10/24/13Control circuit for an inverter with small input capacitor
10/24/13Switching control circuit with signal process to accommodate the synchronous rectifier of power converters
10/17/13Receiving control circuit for a wall control interface with phase modulation and detection for power management
09/26/13Sampling circuit for measuring reflected voltage of transformer for power converter operated in dcm and ccm
09/26/13Sampling circuit for measuring the reflected voltage of transformer for power converter
09/12/13Two-switch flyback power converters
09/12/13Start-up circuit to discharge emi filter for power saving of power supplies
08/22/13Interface circuits for cascade and series battery management and methods thereof
07/18/13Angle detection rotor of motor
07/18/13Adaptive sampling circuit for detecting the demagnetized voltage of the transformer
05/02/13Successive approximation multiplier-divider for signal process and signal process
03/14/13Control circuit for controlling the maximum output current of power converter and method thereof
03/14/13Protection circuit for power converter
Social Network Patent Pack
02/28/13Adaptive slope compensation programmable by input voltage of power converter
01/31/13Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof
11/29/12Control circuit with zvs-lock and asymmetrical pwm for resonant power converter
11/08/12Method and controlling resonant power converter
10/04/12Trim circuit for power supply controller
07/05/12Feedback circuit with remote on/off control for power supply
05/03/12Power supply with open-loop protection and short-circuit protection
04/05/12Method and a led driver with high power factor
03/08/12Method and a flyback power converter providing output voltage and current regulation without input capacitor
01/12/12Method and apparatus of providing a biased current limit for limiting maximum output power of power converters
Patent Packs
01/05/12Control circuit of interleaved pfc power converter
12/29/11Control circuit with protection circuit for power supply
12/29/11Dual switches flyback power converter with wide input voltage range
12/15/11Active-clamp circuit for quasi-resonant flyback power converter
12/15/11Start-up circuit with low standby power loss for power converters
12/15/11Adaptive synchronous rectification control method and apparatus
10/27/11Semiconductor structure
10/20/11Method and detecting ccm operation of a magnetic device
09/01/11Power supply with open-loop protection
07/28/11Semiconductor device
07/28/11High side semiconductor structure
07/28/11Switching controller for power converters
07/21/11Start-up circuit to discharge emi filter of power supplies
07/14/11Led drive circuit with a programmable input for led lighting
06/09/11Feedback circuit with feedback impedance modulation for improving power saving
05/19/11Switching controller having switching frequency hopping for power converter
02/17/11Resonant power converter with half bridge and full bridge operations and control thereof
10/07/10Pfc converter having two-level output voltage without voltage undershooting
09/16/10Control circuit of resonant power converter with asymmetrical phase shift to improve the operation
09/16/10Output voltage control circuit of power converter for light-load power saving
08/12/10Soft switching power converter with a variable switching frequency for improving operation and efficiency
05/20/10Wall control interface with phase modulation and detection for power management
05/20/10Offline synchronous rectifier with causal circuit for resonant switching power converter
04/22/10Control circuit having off-time modulation to operate power converter at quasi-resonance and in continuous current mode
02/18/10Semiconductor device for electrostatic discharge protection
02/18/10Interleaved slave switching circuit for discontinuous mode pfc converter
02/11/10Switching controller having switching frequency hopping for power converter
01/21/10Offline synchronous rectifying circuit with sense transistor for resonant switching power converter
01/14/10Method and apparatus of providing a biased current limit for limiting maximum output power of power converters
12/24/09Apparatus providing protection for power converter
Patent Packs
09/03/09Offline synchronous switching regulator
08/13/09Switching controller having programmable feedback circuit for power converters
05/21/09Synchronous regulation circuit
04/30/09Synchronous rectifying circuit for offline power converter
04/09/09Control circuit for synchronous rectifying and soft switching of power converters
03/05/09Control circuit for measuring and regulating output current of ccm power converter
02/05/09Integrated circuit with a preheat control for a ballast
12/12/13Digital power control circuit for power converter and control circuit for power converter
01/21/10Offline synchronous rectifying circuit with sense transistor for resonant switching power converter
01/14/10Method and apparatus of providing a biased current limit for limiting maximum output power of power converters







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



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