Abstract: A power supply with adjustable outputted voltage includes a casing, a circuit board, a voltage-adjusting knob and a rotary wheel. The casing is provided thereon with a window, and the circuit board is disposed in the casing. The circuit board is electrically connected to AC/DC power input processing circuit in which only AC (or DC) exists or both AC and DC exist simultaneously. The voltage-adjusting knob is electrically connected on the circuit board. The rotary wheel is provided thereon with a plurality of voltage-adjusting numerals. The voltage-adjusting numerals are located to correspond to the window of the casing and are displayed in the window.

Abstract: A power brick device has a power brick housing. A male electrical plug electrically couples AC power to an interior portion of the power brick housing. A female electrical socket is coupled to the power brick housing and is electrically coupled to and receives AC power from the male electrical plug. An AC to DC converter is electrically coupled to the male electrical plug to receive AC power therefrom and produce a DC output therefrom. A current sensor senses current drawn by one of the AC to DC converter and the female electrical socket. A switch, responsive to the current sensor, selectively removes power from the other one of the female electrical socket and the AC to DC converter when a drop in current is sensed by the current sensor. AC versions without DC conversion are also contemplated. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A converter has a casing and a plug. The casing has a mounting recess, multiple position posts, multiple conductive slices and multiple mounting protrusions. The mounting recess is formed in the casing. The position posts are formed on and protrude from the mounting recess. The conductive slices are mounted around the position posts. The mounting protrusions are formed on the mounting recess. The plug is detachably mounted on the casing and has an escutcheon, an engaging protrusion and multiple terminals. The escutcheon covers the mounting recess. The engaging protrusion is formed on the escutcheon, is mounted in the mounting recess and has a position groove and multiple holding grooves. The position is annular formed in the engaging protrusion and is mounted around the position posts. The holding grooves are formed on the engaging protrusion and engage the mounting protrusions. The terminals are formed on the escutcheon.

Abstract: An AC adapter including an AC-side plug module and a DC-side connector module coupled to each other is provided. A first voltage-reducing element and a relay are electrically coupled to an AC power supply. An AC-to-DC converter is electrically coupled to the relay. The DC-side connector module has a mechanical switch element electrically coupled to the relay and the first voltage-reducing element. When the DC-side connector module is connected to a device socket, the mechanical switch element is turned on and the relay is enabled, so that the electrical power of the AC power supply is transmitted to the AC-to-DC converter through the enabled relay. When the DC-side connector module is disconnected from the device socket, the mechanical switch element is turned off and the relay is disabled, so that the electrical power of the AC power supply is not transmitted to the AC-to-DC converter.

Abstract: A voltage transformer with mechanically actuated voltage-selected switch provides an input voltage pass through a voltage transformation unit, wherein the unit is disposed in the casing and its both ends are electrically connected to the input port and output port respectively, and transforms this input voltage into the predetermined output voltages corresponding to the selective switches according to selection of the mechanically actuated voltage-selected switch.

Abstract: Disclosed is a power inverter for use in converting 12VDC to 115VAC, the power inverter is adapted for securement to a conventional trailer hitch connector. The power inverter provides remote power to 115 volt accessory items by use of a conventional 115 volt output receptacle positionable at the rear of a vehicle by use of the trailer hitch connector so as to eliminate the need for extension cords commonly used when powering 115 volt accessories from a conventional vehicle.

Abstract: The present invention is directed to a electrical wiring device that includes a housing having a plurality of line terminals. A cover assembly is coupled to the housing, the cover assembly including at least one set of receptacle openings disposed on either side of a central portion of the cover assembly. A plurality of receptacle terminals are disposed in the housing, each of the plurality of receptacle terminals being coupled to a corresponding one of a plurality of load terminal structures. Each of the plurality of receptacle terminals is in communication with a corresponding one of the at least one set of receptacle openings. A light assembly is disposed in the central portion of the cover assembly and coupled to the plurality of line terminals or the plurality of load terminals. The light assembly has a light transmission region disposed in the central portion. The light transmissive region occupies a substantial portion of a width of the cover assembly.

Abstract: A voltage transformer with a sequentially switchable voltage selection circuit is provided for converting input electrical energy through the sequentially switchable voltage selection circuit, which is arranged within the transformer body with its two ends electrically connected to an input port and an output port respectively, into one of a plurality of output voltage values and outputting the electrical energy. When it is desired to regulate an output voltage, a connection device must be plugged in a socket portion on the transformer body to initialize a micro control unit through feedback to change a voltage value sent to a voltage transformation unit, and in turn change the voltage of output electrical energy until a display device displays an ideal output voltage value. Then, the user removes the connection device, and the voltage value of the input electrical energy is converted into corresponding to the selected predetermined voltage value to output the electrical energy.

Abstract: An inverter device, which has two operation modes including a grid-connected operation mode where the inverter device is interconnected with a commercial power system, and an isolated operation mode where the inverter device is independent of a commercial power system and performs an isolated operation, includes an inverter converting direct-current power received from a direct-current power supply of a solar battery array into alternating-current power, a control unit controlling an action of an inverter device, a plug for outputting the alternating-current power converted by the inverter, and a load-connecting receptacle on a path of a power supply line connecting the inverter and the plug, for outputting the alternating-current power.

Abstract: A power adapter includes an insulation casing. A plug module has at least one plug pin which defines a plug end protruding out of the insulation casing and an inserting end opposite to the plug end received in the insulation casing. The insulation casing receives a printed circuit board, at least one connecting member and conductive member therein. The conductive member is fixed on the printed circuit board and defines a receiving space. The connecting member has a contact portion received in the receiving space of the conductive member for electrical connection therebetween and a retaining portion connecting with the inserting end of the plug module. The assembly structure of the power adapter is simplification.

Abstract: An object is to provide an integrated-inverter electric compressor that can enhance assembly and vibration resistance of power semiconductor switching devices and control substrates thereof constituting the inverter device. The integrated-inverter electric compressor, in which an inverter device is installed in an inverter container provided on an outer circumference of a housing, includes a plurality of IGBTs constituting the inverter device and a guide member having a plurality of guide holes for passing terminals of the IGBTs provided between the control substrate and the IGBTs. The guide member is provided with at least one first positioning pin, fitted in positioning holes provided in a mounting surface of the IGBT, in one side surface facing the IGBT, and at least one second positioning pin, fitted in positioning holes provided in the control substrate, in another side surface facing the control substrate.

Abstract: A modular power converter including a first housing enclosing a converter circuit, and a selectively detachable second housing enclosing a retractable power cable. In a first orientation the detachable second housing is secured to the first housing to form a unitary housing. In a second orientation, the second housing is detached from the first housing such that a first end of the extended power cable may tether to the first housing output a selectable distance therefrom. The cable also has a second end extendable from the second housing a predetermined distance. This modular power converter forms a single compact device when the power cable is not extended from the second housing.

Abstract: A portable hand held power inverter/converter having a pass through device for simultaneously sourcing A.C. and multiple voltage D.C. power consuming devices through a single D.C. power source connection. Inverter and converter circuitry is provided to invert and convert D.C. voltage to an A.C. voltage source and a lower DC voltage. A.C. electrical outlets are provided to facilitate a connection to an external A.C. power-consuming device and a DC outlet to a lower volt DC power-consuming device. The pass through device provides an independent and simultaneous connection to an additional D.C. outlet that would otherwise be eliminated when occupied by the inverter thus allowing simultaneous connection and operation of both A.C. and multi source D.C power consuming devices through a single external D.C. power outlet of a single D.C. power source.

Abstract: In a power adapter having multiple power outputs, a first information handling system (IHS) is coupled to a first power output included by the multiple power outputs. A second IHS is coupled to a second power output included by the multiple power outputs. A controller is coupled to each IHS and each power output. In response to the first IHS being decoupled from the first power output, an amount of power that is supplied to the second power output is determined.

Abstract: In an AC adapter provided with a circuit board having first and second surfaces opposite to each other in a thickness direction, a transformer portion is mounted on the circuit board. A secondary capacitor is connected to an output side of the transformer portion. The secondary capacitor has a low profile and extending in parallel to the circuit board. Thus, the AC adapter as a whole is reduced in external size. Preferably, the transformer portion is mounted on the first surface while the secondary capacitor is mounted on the second surface.

Abstract: A power adapter has a body, a pair of blades, a DC output terminal, an AC to DC circuit, a node and a storage unit. The blades are mounted in and protrude from the body to connect to an AC power source to obtain AC power. The DC output terminal is mounted on the body to connect to a load. The AC to DC circuit is mounted in the body, converts the AC power into DC power and has an input terminal and an output terminal. The node is defined between the DC output terminal and the AC to DC circuit. The storage unit is connected to the node to store the DC power output from the AC to DC circuit and provide a stored DC output to the DC output terminal.

Abstract: A plugtype power supply unit includes an enclosure, a plug portion secured thereto, and a low-voltage cord extending from said enclosure. Each cross-sectional configuration of said enclosure with said plug portion corresponds to and does not exceed the cross-sectional configuration of a plug face of an American type plug according to the NEMA 1-15P standard. A switch mode power supply circuit mounted on a PCB is built into said enclosure, said switch mode power supply circuit includes a transformer for power converting and a capacitor for regulating an input voltage, a central axis of said capacitor is disposed parallel to the direction of said PCB.

Abstract: A portable hand held power inverter/converter having a pass through device for simultaneously sourcing A.C. and multiple voltage D.C. power consuming devices through a single D.C. power source connection. Inverter and converter circuitry is provided to invert and convert D.C. voltage to an A.C. voltage source and a lower DC voltage. A.C. electrical outlets are provided to facilitate a connection to an external A.C. power-consuming device and a DC outlet to a lower volt DC power-consuming device. The pass through device provides an independent and simultaneous connection to an additional D.C. outlet that would otherwise be eliminated when occupied by the inverter thus allowing simultaneous connection and operation of both A.C. and multi source D.C power consuming devices through a single external D.C. power outlet of a single D.C. power source.

Abstract: A composite port connection device, and is provided with a plurality sets of connection ports for the user to connect them to various types of electronic devices. The connection ports include power output port and data transmission port. The major function of the invention is that, upon receiving the local power supply and data signals at input terminal, the power supply and the data signals are processed separately and independently, then they are connected to the related output ports respectively. Thus, the device enables a user to connect each of the respective output ports to each of the various electronic devices, hereby achieving the objective of providing power supply and realizing data transmission.

Abstract: An AC high voltage detecting device includes a high voltage power supply (HVPS) to convert a low voltage into an AC high voltage, a rectifier to rectify the converted AC high voltage into a positive voltage and a negative voltage, a voltage divider to divide the rectified positive voltage and the rectified negative voltage into a first voltage and a second voltage, respectively; and a detector to read out a sum component of the first and the second voltages to detect the AC high voltage in a DC level. Since the AC high voltage supplied from the high voltage power supply is detected after being converted into a DC voltage, there is no variance caused due to various devices required to detect an AC voltage.

Abstract: An external AC power adaptor having an additional compartment for cooling. The adaptor has a housing that defines a first compartment having power circuitry for converting an AC input to a DC output and a second compartment that has an opening formed in the adaptor housing. A heat transfer plate is disposed between the first and second compartments.

Abstract: The invention relates to a controlling apparatus of an AC LED string, which includes a controller to control the string being capable of flickering or totally unflickering very easily. The apparatus can also connect an adjustable resistance for application on a string with various numbers of LEDs. The apparatus includes at least one set of a pair of slots with different shapes or sizes at output ends for connecting with the LED string correctively that obtains improvement and utilization.

Abstract: A charge apparatus of an extension cord plug is provided. The charge apparatus is set inside an outlet and connected to an USB interface outside the outlet. When the outlet is electrified, the plug thereon is able to provide power to an electric appliance for normal operation through the USB interface after processing of the charge apparatus. By the time, the user may select demanded voltage to achieve objective of charging by various voltage sources.

Abstract: An object is to provide an integrated-inverter electric compressor that can enhance assembly and vibration resistance of power semiconductor switching devices and control substrates thereof constituting the inverter device. The integrated-inverter electric compressor, in which an inverter device is installed in an inverter container provided on an outer circumference of a housing, includes a plurality of IGBTs constituting the inverter device and a guide member having a plurality of guide holes for passing terminals of the IGBTs provided between the control substrate and the IGBTs. The guide member is provided with at least one first positioning pin, fitted in positioning holes provided in a mounting surface of the IGBT, in one side surface facing the IGBT, and at least one second positioning pin, fitted in positioning holes provided in the control substrate, in another side surface facing the control substrate.

Abstract: A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.

Abstract: A DC-to-DC power adapter includes a first DC power input portion, a DC-to-DC power converting circuit and a first DC power output portion. The first DC power input portion is selectively connected to an AC-to-DC power adapter or a DC power connector for receiving a first input DC voltage from the AC-to-DC power adapter or a second input DC voltage from the DC power connector. The DC-to-DC power converting circuit is electrically connected to the first DC power input portion for converting the first input DC voltage or the second input DC voltage into a first DC output voltage. The first DC power output portion is electrically connected to the DC-to-DC power converting circuit for receiving and outputting the first DC output voltage.

Abstract: A power brick device has a power brick housing. A male electrical plug electrically couples AC power to an interior portion of the power brick housing. A female electrical socket is coupled to the power brick housing and is electrically coupled to and receives AC power from the male electrical plug. An AC to DC converter is electrically coupled to the male electrical plug to receive AC power therefrom and produce a DC output therefrom. A current sensor senses current drawn by one of the AC to DC converter and the female electrical socket. A switch, responsive to the current sensor, selectively removes power from the other one of the female electrical socket and the AC to DC converter when a drop in current is sensed by the current sensor. AC versions without DC conversion are also contemplated. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A power supply comprises a chassis, a plurality of alternating current (AC) power receptacles formed into the chassis, and power supply circuit contained within the chassis and selectively coupled to ones of the plurality of AC power receptacles.

Abstract: A combined modulator and inverter for use in transmitting audio files to a receiver. The combined modulator and inverter enables the usage of various devices in a vehicle that utilize different types of power sources. Audio devices may be used with the modulator and inverter to play the devices over a radio. The device may also have the ability to play audio files received from devices enabled to store digital flies.

Abstract: Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additionally, or alternatively, semiconductor devices are thermally coupled to thermally conductive substrates with relatively large surface areas before heat transferred from the semiconductor devices encounters a dielectric or electrically insulating structure with correspondingly high thermal impedance.

Abstract: A plug device with a built-in power supply of switch mode power supply type is disclosed. The plug device comprises a printed circuit board upon which a high-frequency transformer, a low-voltage capacitor and other components which make up a switch mode power supply are arranged. A first isolating barrier extends form the housing in between the high-frequency transformer and said low-voltage capacitor. A third isolating barrier extends form the housing and into a first slot in the printed circuit board and a fourth isolating barrier extends from said housing and into a second slot in the printed circuit board. These slots are placed between the high-voltage and low-voltage connection terminals of the high-frequency transformer. A second isolating barrier extends from said housing and between the high-frequency transformer and the printed circuit board and beneath said high-frequency transformer.

Abstract: The proposed power converter system includes: a main body component having a case, an input terminal, a power converter circuit electrically connected to the input terminal, a plurality of resistors electrically connected to the power converter circuit, and a first connecting port electrically connected to each of the resistors, and a plurality of adaptor units each having an adaptor. Each of the adaptors is employed to let the power converter circuit generate a specific output voltage value and includes: an input connecting port coupled to the first connecting port to let each of the resistors become one of the grounded state, the open-circuited state, and the coupled to the output voltage state, and an output port coupled to the input connecting port for outputting the output voltage.

Abstract: An electronic apparatus, for inputting a DC power through an adapter, includes a loading circuit and a DC power input apparatus. The loading circuit, including a first power input terminal and a second power input terminal, is used for receiving the first DC power. The DC power input apparatus, for inputting the first DC power to the loading circuit, includes a fuse and rectifier. The fuse includes a first terminal coupled to a first voltage terminal of the adapter, and a second terminal coupled to the first voltage input terminal of the loading circuit. The rectifier, coupled to the fuse, includes a first polarity terminal coupled to the second terminal of the fuse, and a second polarity terminal coupled to a second voltage terminal of the adapter and the second power input terminal of the loading circuit. The second polarity terminal has a polarity inverse to the second voltage terminal.

Abstract: The present invention provides a universal serial bus (USB) voltage transformer, which comprises a main body, a transformer circuit unit, and several connectors. The transformer circuit unit is disposed in or at the inside of the main body. The connectors are electrically connected to the transformer circuit unit directly or via a connection cable. A USB voltage transformer having travel charging function is thus formed. The USB voltage transformer of the present invention can simultaneously charge several portable electronic devices like mobile phones, personal digital assistants, electronic translators, and small cameras.

Abstract: A cradle casing has a DC/DC adapter to receive DC power from a DC power source and generate a first DC power signal. A sleeve accepts an AC/DC adapter, and guides movement of the AC/DC adapter when the AC/DC adapter is inserted into the cradle casing. The AC/DC adapter is capable of receiving AC power from an AC power source and generating a second DC power signal. A circuit receives at least one of the first DC power signal and the second DC power signal and outputs a third DC power signal.

Abstract: AC module makers must prepare two types of AC modules for the 100-V and 200-V outputs only for domestic supply. For foreign countries, the makers must manufacture AC modules compatible with more system voltages. To solve these problems, the control circuit of an AC module controls the operation of an inverter circuit and/or the transformation ratio of a transforming circuit, and ON/OFF-controls a switch on the basis of the system voltage and connection state of an electric power system.

Abstract: A high voltage power supply for use in a system such as a microfluidics system, uses a DC—DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC—DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.

Abstract: An assembly comprises a voltage regulator module and a field-pluggable voltage converter module configured in an arrangement that interlocks with and optionally attaches to the voltage regulator module.

Abstract: A cordless telephone outlet device that not only provides the cordless telephone access to a telephone network, but also provides the cordless telephone the proper DC electrical energy for proper operation eliminating the need for an unsightly external DC power supply typically connected to an AC outlet. Further, the device significantly reduces exposure of the telephone line connection between the cordless telephone and the telephone network. The outlet device comprises a body having a communications connector mounted thereon and a base attached to the body. The base contains DC power supply circuitry that is connected to a source of AC electrical energy. The output of the power supply circuit is connected to a DC line terminated with a DC male plug.

Abstract: In a power plug capable of preventing twists of a power supply line and turning on/off power supplied to a load device according to a rotation of a rotational unit by dividing the power plug itself into a fixed unit and the rotational unit, the power plug includes the fixed unit at which prongs and a connection terminal connected to the prongs are installed, a rotational unit rotationally installed to the upper portion of the fixed unit and supplying power to the load device, a power on/off unit placed between the fixed unit and the rotational unit and connecting/disconnecting a power supply to the load device according to the rotation of the rotational unit, and a locking unit installed to the upper portion of the rotational unit and locking the rotation of the rotational unit.

Abstract: A cradle casing has a DC/DC adapter to receive DC power from a DC power source and generate a first DC power signal. A sleeve accepts an AC/DC adapter, and guides movement of the AC/DC adapter when the AC/DC adapter is inserted into the cradle casing. The AC/DC adapter is capable of receiving AC power from an AC power source and generating a second DC power signal. A circuit receives at least one of the first DC power signal and the second DC power signal and outputs a third DC power signal.

Abstract: The present invention provides a power adapter which includes a power input connector, a voltage transfer and a power output connector. The power input and output connectors connect conductively to the voltage transfer, and the power input connector engages with a DC power to transmit an input DC to the voltage transfer. The voltage transfer includes a voltage conversion circuit, a multi-transfer switch and a selective resistance network. The voltage conversion circuit conducts the selective resistance network through a multi-transfer manipulation of the multi-transfer switch, further achieves various specific resistance values. In accordance with this, the input DC is converted correspondingly various output DC with specific voltages for various electronic apparatuses.

Abstract: Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additionally, or alternatively, semiconductor devices are thermally coupled to thermally conductive substrates with relatively large surface areas before heat transferred from the semiconductor devices encounters a dielectric or electrically insulating structure with correspondingly high thermal impedance.

Abstract: A power supply capable of receiving an AC or DC input power signal and converting the received input power signal into a DC output power signal includes retractable AC and DC input plugs as well as a retractable output cable. One or more interchangeable tips may be attached to the end of the output cable to change a characteristic of the output power to meet a power requirement of an electronic device to which power is being supplied. The tips may be stored in a recess in the outer housing of the power supply.

Abstract: An object is to provide a compact AC adaptor integral-type household-power-line coupler capable of simplifying a structural arrangement of an apparatus containing a communication terminal, and also capable of improving a handling characteristic and an outer appearance thereof. The AC adaptor integral-type household-power-line coupler is arranged by employing a household-power-line power converting/supplying unit 7 connected to a plug unit 4, for supplying electric power to a communication terminal, the plug unit being employed to be coupled to a household-power-line plug socket; a household-power-line carrier signal coupling unit 8 for inputting/outputting a signal via the plug unit 4 to the communication terminal; and a casing unit 6 containing thereinto both the household-power-line power converting/supplying unit 7 and the household-power-line carrier signal coupling unit 8.

Abstract: A power line communication MODEM includes a rectification circuit for converting an AC power source to a DC power source, a MODEM circuit to which a DC voltage is supplied from the rectification circuit, a USB connector connected to the MODEM circuit, and a signal overlapping circuit for overlapping a signal processed by the MODEM circuit with the AC power source, wherein the rectification circuit supplies the DC voltage to the USB connector.

Abstract: A voltage converter includes a converter circuit, a casing, and a jumper member. The converter circuit includes a voltage level setting circuit configured for generating a feedback signal, wherein an output voltage generated by the converter circuit has a voltage level that is determined according to value of the feedback signal. The voltage level setting circuit includes a plurality of first electrical components and a first common line. The casing receives the converter circuit, and is formed with a set of first jumper holes corresponding to the first electrical components, and a second jumper hole corresponding to the first common line. The jumper member connects selected ones of the first electrical components to the first common line upon insertion into the first and second jumper holes. The value of the feedback signal is dependent upon connection status of the first electrical components to the first common line.

Abstract: A power converter with output voltage level indicating device is disclosed. The power converter includes a casing, an interior of which is disposed with a control circuit. The control circuit includes a feedback circuit and a DC-to-DC conversion circuit. The feedback circuit is coupled to the DC-to-DC conversion circuit and connected to a level-selecting terminal by at least one resistor to provide a feedback signal to the DC-to-DC conversion circuit which in turn changes the voltage level of the DC output. An output socket is formed at the casing, which is connected with the control circuit. The output socket includes two primary, power terminals and at least one secondary, level-selecting terminals. A level-selecting terminal device is connected to the output socket via an extension cable for getting the DC voltage and supplying the DC voltage to an appliance via an output terminal.

Abstract: An object is to provide a compact AC adaptor integral-type household-power-line coupler capable of simplifying a structural arrangement of an apparatus containing a communication terminal, and also capable of improving a handling characteristic and an outer appearance thereof. The AC adaptor integral-type household-power-line coupler is arranged by employing a household-power-line power converting/supplying unit 7 connected to a plug unit 4, for supplying electric power to a communication terminal, the plug unit being employed to be coupled to a household-power-line plug socket; a household-power-line carrier signal coupling unit 8 for inputting/outputting a signal via the plug unit 4 to the communication terminal; and a casing unit 6 containing thereinto both the household-power-line power converting/supplying unit 7 and the household-power-line carrier signal coupling unit 8.

Abstract: In an electric distribution box (1), electric power, supplied from an alternator (ALT), is supplied to fusible links (F/L) via a power supply terminal (4) and a bus bar (3). The bus bar (3) includes a first bus bar (3B), forming a path for supplying necessary supply electric power for a maximum load condition from a connection bus bar (3A) connected to the power supply terminal (4), and a second bus bar (3C) forming a path for supplying an excessive proportion of the maximum electric power, generated by the alternator, over the necessary supply electric power for the maximum load condition.