| 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) |
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| 01/26/2005 | CN1571263A Differential current output unit |
| 01/26/2005 | CN1571229A Switching fault detection control device for compensation capacitance |
| 01/26/2005 | CN1186704C Digital voltage-regulating circuit of D.C. voltage-stabilized integrated circuit |
| 01/25/2005 | US6847253 Half voltage generator having low power consumption |
| 01/25/2005 | US6847198 Frequency sensing voltage regulator |
| 01/25/2005 | US6847195 Auxiliary circuit for power factor corrector having self-power supplying and zero current detection mechanisms |
| 01/20/2005 | WO2005006528A1 Power supply having multi-vector error amplifier for power factor correction |
| 01/20/2005 | WO2005006377A2 A protective and measure device for multiple cold cathode flourescent lamps |
| 01/20/2005 | WO2005006101A2 Programmable calibration circuit for power supply current sensing and droop loss compensation |
| 01/20/2005 | US20050012497 Device for measuring a chopped current |
| 01/20/2005 | US20050012495 Circuit arrangement with a resistor voltage divider chain |
| 01/20/2005 | US20050012494 Power supply voltage lowering circuit used in semiconductor device |
| 01/20/2005 | US20050012396 Graphical interface for configuring a power supply controller |
| 01/19/2005 | EP1497970A2 Waveform generator for controlling an electron beam in a cathode ray tube |
| 01/19/2005 | EP1497844A2 Focus voltage control arrangement with ultor voltage tracking |
| 01/19/2005 | EP1497815A2 Focus voltage amplifier |
| 01/19/2005 | EP1497814A1 Focus voltage control arrangement |
| 01/19/2005 | EP1057090B1 Electrical appliance |
| 01/19/2005 | CN2672704Y Linear integrated power device |
| 01/19/2005 | CN2672703Y Voltage regulator |
| 01/19/2005 | CN1567697A A brushless DC motor |
| 01/19/2005 | CN1185782C Operation method for power supply system with parallel connected inverter and power change-over system |
| 01/19/2005 | CN1185780C DC-DC transfer circuit, power selection circuit and equipment |
| 01/18/2005 | US6845060 Program counting circuit and program word line voltage generating circuit in flash memory device using the same |
| 01/18/2005 | US6844739 Maximum power point tracking method and device |
| 01/18/2005 | US6844709 Programmable voltage supervisory circuit and method with minimum programming pins and low quiescent current |
| 01/13/2005 | WO2005004271A1 Fuel cell generation system, fuel cell generation control method, and fuel cell generation device |
| 01/13/2005 | US20050008905 Method and apparatus for regulating electrical power output of a fuel cell system |
| 01/13/2005 | US20050007190 Potential generating circuit capable of correctly controlling output potential |
| 01/13/2005 | US20050007189 Method and apparatus for current limitation in voltage regulators |
| 01/13/2005 | US20050007188 [two phase internal voltage generator] |
| 01/13/2005 | US20050007083 Power supply having multi-vector error amplifier for power factor correction |
| 01/13/2005 | US20050007079 Elimination of potential transformer in ANSI type a voltage regulator |
| 01/13/2005 | US20050007077 4-20 ma interface circuit |
| 01/13/2005 | US20050007076 Bootstrap capacitor charge circuit with limited charge current |
| 01/13/2005 | US20050007064 Charging apparatus and charging current detecting circuit thereof |
| 01/13/2005 | US20050005714 Neutral point voltage regulator of torque sensor |
| 01/13/2005 | DE10327956A1 Circuit arrangement for voltage supply to load in normal and standby operation, has second converter unit coupled to input terminals to provide output voltage during standby |
| 01/13/2005 | DE10327285A1 Schaltungsanordnung Circuitry |
| 01/12/2005 | EP1495530A2 Soft switching high efficiency flyback converter |
| 01/12/2005 | CN2670985Y Continuous voltage constant-current source of photoelectric encoder |
| 01/12/2005 | CN2670984Y Intelligent pulsewidth modulating purified power supply |
| 01/12/2005 | CN1564416A Reactive optimizing method of power system based on coordinate evolution |
| 01/12/2005 | CN1184546C Electronic circuit, semiconductor device, electronic equipment, and clock |
| 01/11/2005 | US6842356 Firewire/USB bus-charger for 12V DC automotive |
| 01/11/2005 | US6842068 Power management method and structure |
| 01/11/2005 | US6841978 Voltage regulator with frequency response correction |
| 01/11/2005 | US6841976 Multi-line power flow transformer for compensating power flow among transmission lines |
| 01/06/2005 | WO2005002033A1 Power factor control device and method therefor |
| 01/06/2005 | WO2005001961A2 Energy storage system |
| 01/06/2005 | WO2005001591A1 Reactive power optimization with adaptive excitation control |
| 01/06/2005 | US20050002214 Method and apparatus for tracking maximum power point for inverters, for example, in photovoltaic applications |
| 01/06/2005 | US20050001650 Method for setting a termination voltage and an input circuit |
| 01/06/2005 | US20050001597 Synchronization of multiphase synthetic ripple voltage regulator |
| 01/05/2005 | EP1493070A2 Circuit arrangement for regulating voltage |
| 01/05/2005 | DE10325611A1 Power supply apparatus for information appliance e.g. PC, has rectification unit rectifying AC voltage to medium voltage DC, and conversion unit transforming medium voltage DC to low voltage DC to be output |
| 01/05/2005 | CN1560989A On-load smooth regulating trnsformer |
| 01/05/2005 | CN1560981A Dynamic compensator for voltage down and surge |
| 01/05/2005 | CN1183658C Oscillation circuit, electronic circuit, semiconductor device, electronic equipment and clock |
| 01/04/2005 | US6838927 Semiconductor integrated circuit with stabilizing capacity |
| 01/04/2005 | US6838781 Control system for a cogeneration unit |
| 01/04/2005 | US6838611 Solar battery module and power generation apparatus |
| 12/30/2004 | US20040266399 Method and apparatus for providing selected status announcements from a wireless telephone user to a caller |
| 12/30/2004 | US20040264225 Method and apparatus for determining a maximum power point of photovoltaic cells |
| 12/30/2004 | US20040263240 Voltage reference generator |
| 12/30/2004 | US20040263145 Semiconductor integrated device |
| 12/30/2004 | US20040263142 Internal voltage generator for semiconductor device |
| 12/30/2004 | US20040263140 Device for the correction of the power factor in forced switching power supplies |
| 12/30/2004 | US20040263137 Power supply circuit |
| 12/30/2004 | US20040263133 Display power partitioning |
| 12/30/2004 | US20040263132 Power supply control apparatus including control circuit chip with reverse-connected battery protection |
| 12/29/2004 | WO2004114041A1 Regulated tap transformer |
| 12/29/2004 | WO2004114040A2 Circuit arrangement comprising a voltage regulator and a voltage monitoring unit |
| 12/29/2004 | WO2004063865A3 A reconfigurable topology for switching and linear voltage regulators |
| 12/29/2004 | CN2667543Y Switch integrated electric source device |
| 12/29/2004 | CN2667542Y Constant current integral power source device |
| 12/29/2004 | CN1559025A A high performance integrated circuit regulator with substrate transient suppression |
| 12/28/2004 | US6836417 Semiconductor integrated circuit with selectable power supply according to different operation modes |
| 12/28/2004 | US6836177 Step-up circuits |
| 12/28/2004 | US6836169 Single ended clock signal generator having a differential output |
| 12/28/2004 | US6836157 Method and apparatus for driving LEDs |
| 12/28/2004 | US6836104 Internal power supply voltage control apparatus having two internal power supply reference voltage generating circuits |
| 12/28/2004 | US6836100 Method and phase redundant regulator apparatus for implementing redundancy at a phase level |
| 12/23/2004 | WO2004111742A1 A circuit for detecting electric current |
| 12/23/2004 | WO2004066675A3 Dimming ballast control ic with flash suppression circuit |
| 12/23/2004 | WO2004059845A3 Clock signal generator having a differential output |
| 12/23/2004 | WO2004049089A3 Method for reducing the current consumption of a microprocessor provided with a watchdog circuit |
| 12/23/2004 | US20040260488 Reactive power optimization with adaptive excitation control |
| 12/23/2004 | US20040257053 Power supply circuit |
| 12/23/2004 | US20040257052 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies |
| 12/23/2004 | US20040257007 Geometric panel lighting apparatus and methods |
| 12/23/2004 | US20040257004 Electronic ballast with ignition and operation control |
| 12/22/2004 | EP1489729A2 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies |
| 12/22/2004 | CN2665774Y Essential safety type power supply |
| 12/22/2004 | CN2665773Y Low temperature rise compensating type AC voltage stabilizer |
| 12/22/2004 | CN2665772Y Precise constant-current source used for ICP sensor |
| 12/22/2004 | CN1556584A Self optimization maximum power point tracing device and method |
| 12/22/2004 | CN1181350C Current detecting device |
| 12/21/2004 | US6833751 Leakage compensation circuit |
| 12/21/2004 | US6833748 Voltage supply circuit for active and standby mode voltages |