Abstract: This application provides example circuit modules and example electronic devices comprising the circuit module. One example circuit module includes a power input terminal, a power output terminal, a first switching transistor, a second switching transistor, a comparison unit, a boost unit, an energy storage unit, and a direct current conversion unit, where the first switching transistor is turned on and the second switching transistor is cut off when a source voltage input by the power input terminal to the comparison unit is greater than the preset threshold, or the first switching transistor is cut off and the second switching transistor is turned on when a source voltage input by the power input terminal to the comparison unit is less than or equal to the preset threshold.

Abstract: An infrared heating apparatus includes a sheet of ceramic glass having a passband in the infrared spectrum, a metal resistive element having a first portion that is covered by a ceramic refractory material and a second portion that is exposed by the ceramic refractory material, and a controller that controls the metal resistive element to emit infrared radiation in a wavelength corresponding to the passband of the ceramic glass.

Abstract: The present invention is an apparatus and method of forecasting solar energy irradiance potential and subsequent photovoltaic output in a region. The apparatus and method includes collecting meteorological data for a given region and then estimating irradiance levels using parameters collected from the meteorological data. Solar energy production is then simulated using the collected meteorological data, estimated irradiance levels, and physical characteristics of a solar generating system in the given region at a predetermined time.

Abstract: A power supply apparatus includes a converter to convert AC power into DC power, an SMPS to convert the DC power into DC powers desired by loads, a capacitor to interconnect the converter and the SMPS, a PTC element connected to the converter, a first switch connected in parallel with the PTC element, and a second switch connected in series with the first switch. The method includes turning on the second switch to start charging of the capacitor, turning on the first switch to charge the capacitor to a target voltage level, and turning off both the first switch and second switch if a voltage across the capacitor rises over the target voltage level, to discharge the voltage across the capacitor so as to lower the voltage across the capacitor to the target voltage level or lower.

Abstract: Method and system for supplying emergency power to nuclear power plant, wherein the method includes, providing accumulator battery system, connected to emergency bus, the accumulator battery system is monitored by online monitoring system; in case of power loss of electrical devices of the nuclear power plant, the online monitoring system starts the accumulator battery system to provide power supply to the electrical devices of the nuclear power plant via the emergency bus. The present application is adapt to the key technologies and battery management technologies of million kilowatt-class advanced pressurized water reactor nuclear power plant, facilitating to improve the safety of the nuclear power plant in case of serious natural disasters beyond design working conditions.

Abstract: A power supply adapted for supplying electrical power to a load (108), the power supply comprising: at least one powered full bridge circuit (100), wherein the powered full bridge circuit is adapted for being powered by a direct current voltage supply (106), wherein the full bridge circuit (100) comprises a first output connection (104a), and a first switching means (102a-102d) for controlling the application of electrical power to the output connection, at least one floating full bridge circuit (110), wherein each floating full bridge circuit comprises a capacitor (116) adapted for powering the floating full bridge circuit (110), wherein each floating full bridge circuit comprises a second output connection (114b), a second switching means (112a-112d) for controlling the application of electrical power to the output connection, a stack of bridge circuits (100, 110) comprising the at least one powered full bridge circuit and the at least one floating full bridge circuit, wherein the second output convection (

Abstract: Systems and methods for management of a backup power system are described herein. At least one illustrative embodiment includes a backup power system configured to couple to a power source including a plurality of batteries, each comprising one or more cells, used to provide power if the power source fails, and processing logic coupled to the batteries and configured to monitor the state of each of the plurality of batteries and control the charging and discharging of each of the plurality of batteries. If the power source has not failed, the processing logic repeatedly and sequentially causes each battery to discharge while at least one of the remaining batteries remains fully charged, and monitors the power provided by the discharging battery. The processing logic determines the available energy stored in each fully charged battery based upon the power provided by the discharging battery during the time it takes to discharge.

Abstract: A power supply device provided with a main power supply unit that supplies generated predetermined power to an electric load, a current detecting unit, a current indicating unit, an electric storage unit, an auxiliary power supply unit, and a control unit that determines an upper limit current value to be output to the current indicating unit on the basis of at least a condition of the electric load, and controls the upper limit current value such that power supplied from the auxiliary power supply unit to the electric load is converged in a predetermined convergence time when the power supply from the auxiliary power supply unit to the electric load is stopped or reduced.

Abstract: A battery-charging device, having a maximum power point tracking (MPPT) function, for a stand-alone generator system includes a DC/DC power converter and a control circuit used to control the DC/DC power converter.

Abstract: A state-of-charge equalizing device equalizes the state of charge of each of cells connected in series to form an assembled battery, and comprises charging/discharging circuits connected in parallel to the respective cells to discharge and/or charge the respective cells, voltage measurement circuits connected to the respective charging/discharging circuits to measure the voltages across the respective cells, and a control circuit.

Abstract: In an electrical storage apparatus including an electric storage device connected between a main power supply and a load, a first bypass FET and a bypass diode which are connected in series between the main power supply and the load are provided, and first and second main path FETs connected in series between the electric storage device and the load are provided. A controller judges that the first bypass FET suffers an open-circuit failure if the voltage (Va) of the load is equal to or smaller than the first threshold value Vth1 or if the voltage (Vc) at the connection point between the first bypass FET and the bypass diode is equal to or smaller than the second threshold value Vth2, when the first bypass FET is turned on and the first main path FET and the second main path FET are turned off.

Abstract: A Universal Power Supply (UPS) protects audio/visual (A/V) components from damage that may occur due to a sudden power loss by first, providing back up power via a battery, and then initiating the normal, that is powered, shut down of the protected component via an infrared control signal. The infrared control signal is learned from the A/V components remote control unit.

Abstract: A power management unit for a battery-operated electronic device having a bus interface for the interconnection with another electronic device, the power management unit including an electric energy storage element coupled between a battery of the battery-operated electronic device and a voltage supply line of the bus interface, the electric energy storage element being operable to charge/discharge electric energy; a drive circuitry arranged to control a charge/discharge of the electric energy storage element. The drive circuitry is operable to cause an electric power supplied by the other electronic device through the voltage supply line to re-charge the battery; or, in case the other electronic device does not supply electric power, cause the battery supply electric power to the other electronic device through the voltage supply line. The power management unit is particularly adapted for battery-operated, mobile USB OTG devices.

Abstract: A regulated power supply employs two separate sources of power which are serially connected by a variable impedance element, such as a transistor, connected between the two power sources. Output voltage of the power supply is equal to the sum of the individual power supply voltages minus a voltage drop across the variable impedance element. A sensor circuit employing standby and active mode branches is coupled between output terminals of the power supply for control of the variable impedance element. The active branch of the sensor is switchably connected to an output power terminal of the supply so as to be operative only during the active mode. The standby branch comprises a resistive network coupled to a reference diode while the active branch comprises a feedback amplifier coupled to the reference diode.

Abstract: The invention relates to a switching power supply with a battery branch circuit provided for an emergency power supply, which can, similar to the primary circuit, be switched on in case of an emergency, by a switching transistor (13, 43). The battery branch circuit is connected in parallel with the secondary winding (7, 37) of transformer (4) and poled unidirectional with the current pulses which are induced in the secondary winding (7, 37) from the primary side during mains operation. The second switching transistor (13, 43) is switched on during the respective on-phase of the primary-side switching transistor (6), but, relative to this, is switched on later and switched off earlier.

Abstract: A connecting and switching module employs a common type of connector for use with a plurality of types of interconnected systems by providing an adapter having a plug mateable with a common type of connector at one end, and a connector adapted to the system at the other end. In one embodiment of the invention, mechanical interference between adjacent connectors is avoided by providing alternating long and short adapters. Wiring on the circuit board of the module may be the same, with adaptation for different systems taking place in the adapter. This permits a single board design for all systems, with possible minor modification of a monitoring electronic circuit.

Abstract: An address generator which provides addresses for machine storage and software retrieval of computer status information. A counter is used to generate address signals in a descending order until it is disabled by a computer during alarm conditions. Under such conditions the counter provides a bias address for referencing the most recent status word. A gating circuit gates computer generated address signals to an adder circuit during the alarm conditions. The adder circuit adds the computer generated address signals to the counter generated bias signal to provide address signals which reference physical storage locations in a memory.