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ELECTRIC BATTERY or ELECTRIC BATTERIES
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Technical Examples
- To provide a power supply apparatus for an electric vehicle wherein the insulation of a power supply line for supplying a drive voltage to an electric motor can be simplified and the cost for the insulation can be reduced. A power supply apparatus for an electric vehicle includes batteries for driving a motor and general electric parts. An node A of an intermediate voltage of 24 V between a drive voltage of 48 V of the batteries and the ground voltage is connected to a ground line for the general electric parts. An inverter produces a voltage to be applied to the general electric parts based on the drive voltage of 48 V of the batteries and the intermediate voltage of 24 V. By adjusting the duty ratio of the inverter, a voltage of AC 24 V or AC 12 V can be applied to the general electric parts.
- The present invention discloses a dual-voltage vehicle electric system in which a dual-battery vehicle electric system is integrated. In this dual-voltage vehicle electric system, two conventional vehicle batteries are used and are generally operated while connected in series. The series circuit provides the supply voltage for the vehicle electric system at a relatively high voltage for high-power loads. In order to implement an emergency start, both batteries, specifically a starter battery (BS) and a vehicle electric system battery (BB), are connected in parallel. In the case of a defective generator (G) or DC/DC converter (1), an emergency operating supply via battery is possible. The switching of a starter commutation device (U) which is arranged in the connection between the starter battery (BS) and the vehicle electric system battery (BB) is carried out by means of a control device (2) which receives input signals from sensing devices at the starter (S), generator (G), DC/DC converter (1), the starter battery (BS), the vehicle electric system battery (B) and an ignition switch (ZS) and a starter switch (SS) and correspondingly adapts the actuation.
- Microscopic batteries, integratable or integrated with microelectromechanical systems or other microscopic circuits, including a MEMS microcircuit, and methods of microfabrication of such microscopic batteries are disclosed, among which comprise closed system microscopic batteries for internal storage of electricity using interval reactants only, which comprise microscopic electrodes, electrolyte and reservoir for the electrolyte.
- A motor vehicle including an electric drive engine capable of being successively supplied with electric power by two separate electric power sources, in particular by a set of batteries and by a fuel cell, and of the type including an accelerator pedal that is mobile between a rest position and an extreme actuated position corresponding to the maximum power capable of being supplied by the engine based on the amount of electric power available for its powering. A mechanism is provided for varying the extreme actuated position of the pedal on the basis of a parameter representing the amount of electric power available for powering the engine.
- A flashlight includes one or more light devices for being energized to generate light, one or more chargeable batteries are received in the housing and coupled to the light device for energizing the light device, an electric generating device is received in the housing, and rotatable or drivable by an actuating device. A directing device is coupled between the electric generating device and the chargeable battery for preventing an anti-phase electric current from flowing toward the chargeable battery and for preventing the chargeable battery from being damaged by the anti-phase electric current. A coupler may be coupled to the electric generating device for coupling to various electric facilities.
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