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In most vehicles, at least one car outlet is present. Some vehicles may have more power outlets: usually one for the front passengers, one for the rear passengers and one for the luggage trunk. The voltage of the power outlet is usually near 12 V DC, and may be elevated between 13.5 V to 15 V while the engine is running.
dynamo/alternator diode+ D- dynamo/alternator diode- DF dynamo field DF1 dynamo field 1 DF2 dynamo field 2 U, V, W AC three phase terminals Lights 54 brake lights 54g lights 54 55 fog light N 56 spot light 56a headlamp high beam and indicator light 56b low beam F 56d signal flash 57 parking lights 57a parking lights P 57L parking lights left PL 57R
Push-pull converter (+12V → ±18V; 50W) as potted module. â‘ transformer; â‘¡ and â‘¢ electrolytic capacitors vertical and horizontal mounted; â‘£ discrete circuit board in through-hole technology A push–pull converter is a type of DC-to-DC converter , a switching converter that uses a transformer to change the voltage of a DC power supply.
If the AC supply is fed via a transformer with a center tap, a rectifier circuit with improved harmonic performance can be obtained. This rectifier now requires six diodes, one connected to each end of each transformer secondary winding. This circuit has a pulse-number of six, and in effect, can be thought of as a six-phase, half-wave circuit.
When the filament burns out in one of the incandescent light bulbs, the full line voltage appears across the burnt out bulb. A shunt resistor , which has been connected in parallel across the filament before it burnt out, will then short out to bypass the burnt filament and allow the rest of the string to light.
A simple voltage/current regulator can be made from a resistor in series with a diode (or series of diodes). Due to the logarithmic shape of diode V-I curves, the voltage across the diode changes only slightly due to changes in current drawn or changes in the input. When precise voltage control and efficiency are not important, this design may ...
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