Patents
Sitemap › G05 - Controlling; Regulating › G05F - Systems for regulating electric or magnetic variables › G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
Patents for G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems (37,749)
04/2010
04/06/2010US7692416 Voltage up-and-down DC-DC convertor
04/06/2010US7692415 Reactive power control apparatus for AC power system
04/06/2010US7692406 Battery-charger device with improved stability
04/06/2010US7692392 Lighting of discharge lamp by frequency control
04/01/2010WO2010037015A1 Light emitting driver circuit with compensation and method
04/01/2010WO2010036789A1 Methods and systems for maintaining the illumination intensity of light emittiing diodes
04/01/2010WO2010036349A1 System for field - programmed determination of illumination set points in ballasts
04/01/2010WO2010035338A1 Power converting apparatus
04/01/2010WO2010034532A1 Current control system and method for controlling a current
04/01/2010WO2010005969A3 Advanced cost functions for image registration for automated image analysis: multi-channel, hypertemplate and atlas with built-in variability
04/01/2010WO2009151946A3 Multi-modal transponder and method and apparatus to detect same
04/01/2010US20100080023 Switched capacitor voltage regulator
04/01/2010US20100079202 A/d converter
04/01/2010US20100079200 Process/design methodology to enable high performance logic and analog circuits using a single process
04/01/2010US20100079199 Internal voltage control device capable of reducing current consumption and semiconductor memory device using the same
04/01/2010US20100079127 Regulating current output from a buck converter without external current sensing
04/01/2010US20100079126 Dual-loop dc-to-dc converter apparatus
04/01/2010US20100079125 Current sensing in a switching power converter
04/01/2010US20100079124 Adjustable Constant Current Source with Continuous Conduction Mode ("CCM") and Discontinuous Conduction Mode ("DCM") Operation
04/01/2010US20100079123 Output-voltage control device, output-voltage control method, and electronic apparatus
04/01/2010US20100079122 System and Method for Adapting Clocking Pulse Widths for DC-to-DC Converters
04/01/2010US20100079121 Constant-voltage power supply circuit
04/01/2010US20100079120 Measuring the current through a load transistor
04/01/2010US20100079119 System and method for limiting current oscillation
04/01/2010US20100079088 Power systems with current regulation
04/01/2010US20100078999 Administering Offset Voltage Error In A Current Sensing Circuit
04/01/2010CA2738315A1 Methods and systems for maintaining the illumination intensity of light emitting diodes
03/2010
03/31/2010EP2168868A2 Method and apparatus for an electrical bus leveling unit
03/31/2010EP2168024A1 Instrument power controller and method for adaptively providing an output voltage and an output current that together maintain a substantially constant electrical output power
03/31/2010CN201435020Y Power control system for refrigerated container thermal performance test
03/31/2010CN201435019Y High-order temperature compensation bandgap reference circuit
03/31/2010CN101689061A Switching technique for efficient electrical power utilization
03/31/2010CN101689060A Delta-sigma signal density modulation for optical transducer control
03/31/2010CN101689059A Method and firmware for controlling voltage and current in a fluorescent lamp array
03/31/2010CN101685315A Voltage regulator including constant loop gain control
03/31/2010CN101685314A Self-adaption voltage positioning DC stabilizer and control method thereof
03/31/2010CN101685313A Control unit with control current loop for determining parameters
03/30/2010USRE41170 Voltage regulation of a utility power network
03/30/2010US7688667 Voltage converter circuit and flash memory device having the same
03/30/2010US7688131 Charge pump circuit
03/30/2010US7688053 Variable voltage regulating device
03/30/2010US7688052 Charge pump circuit and method therefor
03/30/2010US7688051 Linear regulator with improved power supply rejection
03/30/2010US7688050 Switching power supply controller with unidirectional transient gain change
03/30/2010US7688049 Level shift circuit and power supply device
03/30/2010US7688048 3-phase high power UPS
03/30/2010US7688047 Power circuit and method of rising output voltage of power circuit
03/30/2010US7688045 DC power conversion circuit with constant current output
03/30/2010US7688044 Device for transforming and stabilizing a primary AC voltage for supplying an electric load
03/30/2010US7688043 Reactive-power control apparatus and reactive-power compensator using the same
03/30/2010US7688042 Power factor correction apparatus
03/30/2010US7688004 Device for the controlled switching of a lamp, use of the device and corresponding operating method
03/30/2010US7688002 Light emitting element control system and lighting system comprising same
03/30/2010US7687885 Semiconductor device with reduced parasitic inductance
03/30/2010CA2422689C Wide ratio autotransformer-type current ranging
03/25/2010WO2010033053A1 Alternating voltage stabiliser with protection elements (embodiments)
03/25/2010WO2010031614A1 Photovoltaic device
03/25/2010WO2010015993A3 Single-use lancet sensor assembly and meter
03/25/2010US20100074034 Voltage regulator with reduced sensitivity of output voltage to change in load current
03/25/2010US20100074033 Bandgap Voltage and Temperature Coefficient Trimming Algorithm
03/25/2010US20100073079 Bias arrangement and apparatus
03/25/2010US20100073078 Internal voltage generating circuit
03/25/2010US20100073077 Boosting charge pump circuit
03/25/2010US20100073073 Microprocessor with substrate bias clamps
03/25/2010US20100073070 Low Voltage High-Output-Driving CMOS Voltage Reference With Temperature Compensation
03/25/2010US20100073032 Voltage comparator and electronic device
03/25/2010US20100072970 Adaptive voltage position dc-dc regulators and the method thereof
03/25/2010US20100072969 System and method for near zero light-load supply current in switching regulator
03/25/2010US20100072968 Control system for switching dc-dc converters
03/25/2010US20100072967 Converter control circuit
03/25/2010US20100072966 Circuit with isolation interface and remote on/off
03/25/2010US20100072965 Output voltage feedback device for being used in a power supplying apparatus and power supplying apparatus provided with the same
03/25/2010US20100072964 Voltage regulator including constant loop gain control
03/25/2010US20100072963 Power management chip with dual function pin
03/25/2010US20100072962 Dc/dc switched-mode converter with a period bifurcation control mechanism
03/25/2010US20100072961 Interposer including voltage regulator and method therefor
03/25/2010US20100072960 Switching technique for efficient electrical power utilization
03/25/2010US20100072915 Boost driver circuit with fast discharging function
03/25/2010US20100072540 Electronic circuit control element with tap element
03/25/2010DE112008001184T5 Spannungssteuerung für einen LNB Voltage control for an LNB
03/25/2010DE102008047667A1 Leistungsregelung für einen Windpark Power control for a wind farm
03/24/2010CN201430067Y Idling low-power consumption control module of transformer
03/24/2010CN201429807Y Timing sequence tracking control circuit
03/24/2010CN101682319A Overcurrent protection device
03/24/2010CN101677219A Device and method for dynamically controlling primary side feedback of reference voltage
03/24/2010CN101677217A Direct current load driving circuit
03/24/2010CN101676830A Semiconductor circuit
03/24/2010CN101676829A Low dropout regulator
03/24/2010CN101676828A Reference current generating circuit applied to low operating voltage
03/24/2010CN101676827A Method for converting an input voltage to an output voltage, power regulator and electronic system
03/24/2010CN100595985C Automatic control system of tunable laser based on lock wave
03/24/2010CN100595714C Low voltagedrop voltage stabilizer and voltage stabilizing method thereof
03/24/2010CN100595713C Apparatus and method for control of high intensity discharge lighting
03/23/2010US7685320 Autonomous sequencing and fault spreading
03/23/2010US7684682 Fan circuit with a fan speed control circuit
03/23/2010US7684219 Multiplexed DC voltage regulation output circuit having control circuit for stabilizing output voltages
03/23/2010US7683702 Profile circuit control function
03/23/2010US7683700 Techniques of ripple reduction for charge pumps
03/23/2010US7683699 Charge pump
03/23/2010US7683698 Apparatus and method for increasing charge pump efficiency
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