The present invention relates to a supply battery arrangement having 3 terminals, for example a battery for a video camera recorder. This arrangement permits employing the battery both as an intelligent battery and as a non-intelligent battery capable of operating normally on devices of the standard video camera recorder type and also capable of communicating with a equipment or an intelligent device and displaying the state of charge with no additional terminals. The battery arrangement compris...

The power supply includes a voltage controlled oscillator, two potentiometers and a by-pass circuit coupled to the output of the voltage controlled oscillator. The two potentiometers form two channels, channel 1 and channel 2, one of which will be selected during the bonding cycle to be coupled to a power amplifier. The output of the power amplifier is adapted to be coupled to an ultrasonic transducer for operating the transducer. Selectable channel 1 and channel 2 reference voltage devices are ...

A power supply for an incandescent lamp by which sufficient power is supplied to the lamp to enable the lamp to reach its desired color temperature without exceeding the break over voltage of its filament even though the peaks of the alternating current voltage applied to the power supply exceed the break-over voltage of the filament of the lamp. This is achieved in a preferred embodiment by full-wave rectification of the alternating current voltage applied to the power supply to produced an unf...

Disclosed is a power supply which can be optionally designed in accordance with the objects. Main parts constructing a power supply are divided into noise filter module 3, power factor and harmonic correction module 4, D.C./D.C.converter 5, back-up power supply module 7, and the like. Each module is optionally combined and connected to one another, thus a user can freely design a power supply depending upon the various specifications thereof.

The invention relates to a power supply (9) for a deflection circuit (1), that comprises a deflection coil (2) for connection to a picture tube, a drive circuit (4,5,6) connected to the deflection coil (2), and a deflection controller (3) for controlling the drive circuit (4,5,6). According to the invention the power supply (9) comprises a first input (10,11) connection to an output of the drive circuit (4,5,6) and the deflection coil, a second input connected to a power source (V.sub.input), a ...

According to the present invention, in a water supply apparatus which converts output power of a solar cell with an inverter to drive a motor pump for pumping up water, a DC brushless motor having no sensor for detecting a position of a rotatable shaft is used as a motor for driving the pump. Further, the water supply apparatus, having a pump and a frequency converter for supplying electric power to the pump and controlling a rotational speed of the pump, includes a standard current value table ...

The invention relates to a supply pump embodied as a side channel pump, whereby several sections (14-16) forming the cross-section of a supply chamber (13) each comprise radii. The origins of the external radii are arranged on the front face of a pump housing facing the one rotor. The sections (14-16) comprise common tangents in the adjacent regions thereof. A particularly high efficiency for the supply pump can thus be guaranteed.

An electric power supply employs a striking means to initiate ferroelectric elements which provide electrical energy output which subsequently initiates an explosive charge which initiates a second ferroelectric current generator to deliver current to the coil of a magnetic field current generator, creating a magnetic field around the coil. Continued detonation effects compression of the magnetic field and subsequent generation and delivery of a large output current to appropriate output loads.

In a PDP power circuit, a rectifier circuit is connected to an external commercial power source, and a high voltage power circuit is connected to the rectifier circuit and outputs a first voltage. A first capacitor is connected between an output terminal of the high voltage power circuit and the ground potential. A low voltage power circuit is also connected to the rectifier circuit and outputs a second voltage lower than the first voltage. The input terminal of a DC/DC converter is connected to...

In a feed unit for delivering fuel from a supply tank (10) with a filter cup (13) having a central chamber (14) and an annular chamber (15) enclosing the latter, with a filter cover (30) which closes the annular chamber (15) and which contains an inlet duct (36) to the annular chamber (15) and an outlet duct (37) from the annular chamber (15), and with a feed pump (22) which is inserted in the central chamber (14) and which projects with a suction connection piece (26) through an opening (20) in...