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)
07/2012
07/26/2012US20120187925 Detection of insufficient supplied power
07/26/2012US20120187924 Method for controlling current converters and assembly for performing said method
07/26/2012US20120187858 Load driving device and electronic device using the same
07/26/2012DE112010003227T5 System und verfahren zum ausgleichen von eingangsstrom mit parallelen leistungsversorgungen System and method for balance of input current with parallel power supplies
07/26/2012DE102011009048A1 Spannungswandler zum Betreiben zumindest eines digitalen Schalters Voltage converter for operating at least one digital switch
07/25/2012EP2479633A2 Voltage regulator with pre-charge circuit
07/25/2012EP2479632A2 Power supply circuit with shared functionality and method for operating the power supply circuit
07/25/2012EP2325716B1 Reactive power regulation and voltage support for renewable energy plants
07/25/2012EP1961278B1 A universal dimmer
07/25/2012CN202351728U Voltage stabilizer with soft start and quick closing functions
07/25/2012CN202351727U Low-dropout linear voltage regulator
07/25/2012CN202351726U Resistance and capacitance step-down control circuit
07/25/2012CN202351725U Wide-range temperature adjustment controller of electric blanket
07/25/2012CN202351724U Power supply control circuit of general hardware platform system
07/25/2012CN202351723U Voltage regulator
07/25/2012CN202351722U 0-100A high-precision bi-directional current source
07/25/2012CN1870406B Secondary side controller and method therefor
07/25/2012CN102611341A Photovoltaic inverter and method for tracking maximum power of same
07/25/2012CN102611141A MPPT (maximum power point tracking) control device and method of photovoltaic inverter based on perturbation method
07/25/2012CN102611135A Open loop and closed loop combined maximum power point tracking (MPPT) control method
07/25/2012CN102609030A Maximum power point tracking device of marine photovoltaic power generation system
07/25/2012CN102609029A Bandgap reference apparatus and methods
07/25/2012CN102609028A Phase compensation controller
07/25/2012CN102609027A Band-gap reference voltage source circuit
07/25/2012CN102609026A Buffering circuit
07/25/2012CN102609025A Dynamic current doubling circuit and linear voltage regulator integrated with the circuit
07/25/2012CN102609024A Low-voltage drive buffering circuit chip
07/25/2012CN102609023A Built-in analog power supply circuit
07/25/2012CN102609022A Power management circuit of dual interface card and method
07/25/2012CN102609021A Method for improving voltage identification transient response and voltage regulator
07/25/2012CN102033562B Linear compensated RC charging structure
07/25/2012CN101763134B Parallel voltage stabilizing circuit
07/25/2012CN101521967B Offline control circuit of led driver to control leds
07/24/2012USRE43538 Method and apparatus for preventing boosting system bus when charging a battery
07/24/2012US8228696 Power factor correction converter
07/24/2012US8228156 Insulation transformer and key input circuit having the same
07/24/2012US8228108 High speed fully differential resistor-based level formatter
07/24/2012US8228103 Circuit breaker
07/24/2012US8228051 Switched mode power supply with frequency modulation control
07/24/2012US8228050 Switching power supply
07/24/2012US8228049 Advanced phase number control for multiphase converters
07/24/2012US8228048 Method and system of regulating voltages
07/24/2012US8228047 Power converters having varied switching frequencies
07/24/2012US8228046 Apparatus and method for operating an uninterruptible power supply
07/24/2012US8228045 Quantized voltage feed-forward a power factor correction controller
07/24/2012US8228004 Systems and methods for driving a light source
07/24/2012US8228003 Electronic ballast for an hid lamp with lamp re-start control
07/19/2012US20120182662 Inrush Current Protection Circuit
07/19/2012US20120182064 Voltage characteristic regulating method of latch circuit, voltage characteristic regulating method of semiconductor device, and voltage characteristic regulator of latch circuit
07/19/2012US20120182058 Negative charge pump
07/19/2012US20120182004 Power supply controller
07/19/2012US20120182003 System and Method for Controlling a Switched-Mode Power Supply
07/19/2012US20120182002 Power supply controller having analog to digital converter
07/19/2012US20120182001 Low input voltage boost converter operable at low temperatures and boost controller thereof
07/19/2012US20120182000 Soft start circuit
07/19/2012US20120181999 High accuracy inductor peak current control scheme for switching power supply
07/19/2012US20120181998 Enhanced efficiency low-dropout linear regulator and corresponding method
07/19/2012US20120181997 Method and system for hysteresis control of a power circuit
07/19/2012US20120181996 Multi chip module, method for operating the same and dc/dc converter
07/19/2012US20120181995 Voltage regulator and voltage regulation method
07/19/2012US20120181994 Boosting system, diagnosing method, and computer readable medium storing diagnosing program
07/19/2012US20120181942 Compensation circuit for current peaking reduction in notification appliances
07/18/2012CN1959583B Power source apparatus
07/18/2012CN102598492A Method for determining pre-bias in a switch-mode controller
07/18/2012CN102598456A Substation Automatic Control System
07/18/2012CN102597902A Voltage setting device, photovoltaic power generation system, and control method of voltage setting device
07/18/2012CN102597901A Apparatus for obtaining information enabling the determination of the maximum power point of a power source
07/18/2012CN102597900A Low-dropout voltage regulator
07/18/2012CN102595663A Power-adjustable eclectic heater for heating volatile substance
07/18/2012CN102594326A Voltage stabilizing switching circuit for power supply
07/18/2012CN102594211A Optimizing method and tracking device for output power of partially shielded photovoltaic power generation system
07/18/2012CN102591399A Perturbation and observation method for tracking maximum power point of photovoltaic grid-connected generating system
07/18/2012CN102591398A Multi-output bandgap reference circuit with function of nonlinear temperature compensation
07/18/2012CN102591397A A constant current source circuit of negative resistance characteristic
07/18/2012CN102591396A On-chip self-calibration high-accuracy band-gap reference circuit
07/18/2012CN102591395A Constant current source circuit with band-gap reference function
07/18/2012CN102591394A Bandgap reference voltage source
07/18/2012CN102591393A Low-dropout linear regulator
07/18/2012CN102591392A Low-dropout linear regulator and chip
07/18/2012CN102591391A 电压调节器 Voltage Regulator
07/18/2012CN102591390A Power detecting and adjusting device
07/18/2012CN102591389A Voltage regulating circuit
07/18/2012CN102591388A Direct current bias source for superconductor detector
07/18/2012CN102591387A Voltage regulator and voltage regulation method
07/18/2012CN102591386A Full-automatic single-phase voltage stabilized power supply device
07/18/2012CN102590611A Method for avoiding abnormal display, adjusting system and electric meter
07/18/2012CN102588467A Apparatus and method for actuating a mechanical device
07/18/2012CN101777838B Three-port alternating current/direct current power supply
07/18/2012CN101369162B Reference voltage circuit
07/18/2012CN101350561B Primory feedback controller implementing high precision constant current output and method thereof
07/18/2012CN101102095B Offset voltage correction circuit and class d amplifier
07/17/2012USRE43516 Fault detection for loss of feedback in forced switching power supplies
07/17/2012USRE43513 Method and apparatus for preventing boosting system bus when charging a battery
07/17/2012US8223519 Power control system
07/17/2012US8223518 Multiple phase power supply having current shared power factor correction
07/17/2012US8223514 DC-DC converter circuit, electro-optic device, and electronic device
07/17/2012US8223510 Switching mode power supply and a method of operating the power supply in a power save mode
07/17/2012US8222955 Compensated bandgap
07/17/2012US8222954 Method and apparatus for a process, voltage, and temperature variation tolerant semiconductor device
07/17/2012US8222953 Boost circuit
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