Patents
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)
02/2005
02/24/2005US20050040803 Circuit for generating a reference voltage having low temperature dependency
02/24/2005US20050040802 Low leakage CMOS power mux
02/24/2005US20050040799 Frequency compensation scheme for low drop out voltage regulators using adaptive bias
02/24/2005US20050040798 High voltage power management unit architecture in CMOS process
02/24/2005DE10392486T5 Stromabschaltkreis für aktive Vorspannungsschaltkreise mit Prozessvariationskompensation Stromabschaltkreis for active biasing circuits with process variation compensation
02/24/2005DE10361549A1 Arc discharge protection system for high-voltage electrical equipment has electrode disk, voltage switching circuit, rectifier and trigger circuit
02/24/2005DE102004030222A1 Energieversorgungssteuervorrichtung mit einem Steuerschaltungschip mit Schutz bei umgekehrt geschalteter Batterie Power supply control device having a control circuit chip protection for reversed battery connected
02/24/2005DE10135964B4 Schaltungsbaustein mit hochfrequenten Ein-/Ausgabeschnittstellen Circuit package with high-frequency input / output interfaces
02/23/2005EP1508958A2 Voltage regulator
02/23/2005EP1508847A1 Frequency compensation scheme for low drop out (LDO) voltage regulators using adaptive bias
02/23/2005EP1508078A2 Voltage regulator with dynamically boosted bias current
02/23/2005CN2681520Y Intelligent illuminating terminal monitoring system
02/23/2005CN1585919A Method for regulating the power supply of a number of field devices
02/23/2005CN1585126A Semiconductor integrated circuit and signal sending/receiving system
02/23/2005CN1584769A Constant-current electronic load
02/22/2005US6859157 Programmable precision current controlling apparatus
02/22/2005US6859156 Variable bandgap reference and applications thereof
02/22/2005US6859092 Method and low voltage CMOS circuit for generating voltage and current references
02/22/2005US6859077 Startup circuit for analog integrated circuit applications
02/22/2005US6859040 Voltage detecting circuit
02/22/2005US6859022 Timer circuit and battery protection circuit using same
02/17/2005US20050036246 Constant voltage circuit
02/17/2005US20050035890 Method and circuit for producing trimmed voltage using D/A converter circuit
02/17/2005US20050035749 Method and apparatus for current limitation in voltage regulators
02/17/2005US20050035746 Voltage regulator with adjustable output impedance
02/17/2005US20050035661 Circuit arrangement for supplying voltage to a load
02/17/2005DE102004012256A1 Neutralpunktspannungsregler für einen Drehmomentsensor Neutral point voltage regulator for a torque sensor
02/16/2005CN2679731Y Smart saving controller of lighting
02/16/2005CN2679730Y Voltage stabilizing and dropping electricity saver
02/16/2005CN1582419A 稳压器 Stabilizer
02/16/2005CN1582067A Electron beam heating temperature control method
02/16/2005CN1581659A Power converter circuit and power convertion method
02/16/2005CN1581630A Clean power supply and comprehesive fitering device composed thereof
02/16/2005CN1581009A Voltage generation circuit and method using digital/analog conversion circuit to conduct voltage microregulation
02/16/2005CN1581006A Power supply circuit and semiconductor integrated circuit apparatus
02/15/2005US6856525 Apparatus and method for controlling voltage regulator and power supply apparatus
02/15/2005US6856198 Amplifier and method for voltage-to-current conversion
02/15/2005US6856190 Leak current compensating device and leak current compensating method
02/15/2005US6856163 Power supply decoupling for parallel terminated transmission line
02/15/2005US6856124 LDO regulator with wide output load range and fast internal loop
02/15/2005US6856123 Semiconductor device provided with regulator circuit having reduced layout area and improved phase margin
02/15/2005US6856120 Regulator circuit
02/10/2005WO2005012928A1 Method for detecting open-phase of power supply of three-phase converter
02/10/2005US20050033998 Power supply circuit and semiconductor integrated circuit device
02/10/2005US20050030687 Arc discharge protection apparatus
02/10/2005US20050030213 Variable bandgap reference
02/10/2005US20050030187 Solar panel having visual indicator
02/10/2005US20050030088 Area efficient charge pump
02/10/2005US20050029999 Voltage regulator
02/10/2005US20050029996 Power supply for positive and negative output voltages
02/10/2005US20050029965 Light-emitting device driver and image forming apparatus
02/10/2005DE202004018792U1 Circuit for a current inverter like an alternating/direct current inverter adjusts a power factor for improved use of sources of electric power and voltage
02/09/2005EP1504317A1 Power supply circuit
02/09/2005CN2677979Y Electric-saving device for high-voltage electrical equipment
02/09/2005CN1578116A 电压产生电路 Voltage generating circuit
02/09/2005CN1578082A 半导体装置 Semiconductor device
02/09/2005CN1578080A Semiconductor integrated circuit equipment
02/09/2005CN1578050A Charging apparatus and charging current detecting circuit thereof
02/09/2005CN1578040A 电源电路及电子装置 The power supply circuit and electronic device
02/09/2005CN1578039A Arc discharge protector
02/09/2005CN1577433A Electric power circuit, display driver and voltage supply method
02/09/2005CN1577203A 电源电路 The power supply circuit
02/09/2005CN1577202A Feedback circuit for multi-channel output switch electric source and realizing method
02/09/2005CN1188758C Power supply device, portable electronics device, timing device and their control method thereof
02/08/2005US6853930 System for aiding the preparation of operation and maintenance plans for a power generation installation
02/08/2005US6853818 Fixing device including phase control and wave number control
02/08/2005US6853530 Apparatus and method for actuating a mechanical device
02/08/2005US6853172 Switching regulator
02/08/2005CA2209225C Series compensator inserting real and reactive impedance into electric power system for damping power oscillations
02/08/2005CA2175035C Switchmode ac power controller
02/03/2005US20050024900 Semiconductor device
02/03/2005US20050024129 Reference voltage generating circuit for outputting multi-level reference voltage using fuse trimming
02/03/2005US20050024099 High output impedance current source
02/03/2005US20050024084 Semiconductor integrated circuit and signal sending/receiving system
02/03/2005US20050024035 Programmable calibration circuit for power supply current sensing and droop loss compensation
02/03/2005US20050024034 Current waste suppressing power supply apparatus
02/03/2005US20050024031 Voltage generating circuit
02/03/2005US20050024029 Voltage regulator circuit of integrated circuit chip
02/03/2005US20050024024 Voltage regulator for electronic device
02/03/2005US20050023991 Temperature-to-color converter and conversion method
02/02/2005EP0934682A4 A power control apparatus for lighting systems
02/02/2005CN1574615A Feedback control system and method
02/02/2005CN1574591A Power supply for positive and negative output voltages
02/02/2005CN1574352A 半导体集成装置 Semiconductor integrated device
02/02/2005CN1573637A 电源电路 The power supply circuit
02/02/2005CN1187668C Circuit device for power supply unit
02/01/2005US6850118 Amplifier circuit and power supply provided therewith
02/01/2005US6850112 Device for controlling a circuit generating reference voltages
02/01/2005US6850048 Power supply controller
02/01/2005US6850047 Switching regulator and power supply using the same
01/2005
01/27/2005WO2005008355A1 Semiconductor device with high-breakdown-voltage regulator
01/27/2005WO2005008353A2 Method and apparatus for current limitation in voltage regulators
01/27/2005WO2005008260A1 Solar panel having visual indicator
01/27/2005US20050017701 Efficiency improved voltage converter
01/27/2005US20050017697 Conditioning circuit for a power supply at the maximum power point, a solar generator, and a conditioning method
01/27/2005US20050017696 Method and device for regulating electric voltage
01/26/2005EP1501177A2 Power supply with power factor correction
01/26/2005EP1501176A2 Power supply with power factor correction
01/26/2005EP1500999A1 Power factor correction circuit
01/26/2005EP1499941A2 Altering operating frequency and voltage set point of a circuit in response to the operating temperature and instantaneous operating voltage of the circuit