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What is the voltage range for an auto with a 12vdc nominal electrical system?
Wiki User
∙ 10y ago
You should be getting 14 volts from the alternator.
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∙ 10y ago
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Unit of ripple factor?
Ripple, in DC power supplies, is technically unitless. Ripple voltage is specified in Volts/Volt, or a percentage. For example, a 12VDC power supply with 120mV (pk-pk) of ripple voltage is (0.12/12) = 1% ripple voltage.
15 watt load battery 20 ampere-hour how much time battery used?
Assuming your battery supplies a constant and exact voltage of 12VDC, then your 15 watt load will draw 15 W / 12 V = 1.25 A. Your battery can provide 20Ah, so you'll drain it in 20Ah/1.25A = 16h. Note these are only theoretical values; a real battery doesn't behave like that. The voltage is likely to be higher than 12VDC on a fully charged battery (more like 13..14VDC in a typical car battery, for example), and the voltage will drop over the discharge. Just how the voltage drops (how fast, how low) is a function of the battery (design, quality, age) and environment (temperature, possibly altitude).
Can you replace a transformer with an input rating of 120VAC 60Hz 12W and output rating of 12vdc 500mA with one that has an input rating of 120vac 60hz 25w and an output rating of 12VDC 1A?
Yes, you can. Here's why. If a supply's output is rated at 12 volts DC (12 VDC) and 500 milliamperes (500mA), it can deliver a maximum of 500mA at the 12 volt rating. You want to use a 12VDC supply that is rated at 1A (1000mA). That means that the supply is capable of delivering up to 1A at 12VDC. Now the crux of the matter. Your device, that's the load on the supply, needs 12VDC to operate. Your replacement supply is rated at 12VDC. No problem. Your supply delivered a max of 500mA. That does NOT mean that your load, that thing you're powering up, actually uses all 500mA. Your load knows how much current it needs to draw. Your supply has to be rated for more than that. Your supply was rated at 500mA. It worked well. The supply you wish to use will deliver a max of 1A (1000mA). It will easily supply the current your load will use. Oh, and the polarity of the new supply must be the same as that of the old one. That's pretty obvious. Always be safe and consult an electronics specialist for electrical questions. There are a number of savvy folks working at consumer electrical outlets who can get you up to speed.
How do you calculate the capacitance value of filter capacitor for full-wave bridge 12VDC power supply?
THe Filter capacitor value depnds on the maximum current I of the Power supply , Switching frequency and the permissible ripple C= (I * (1/2f ))/ ( V * %Ripple) - for a full wave rectifier C= (I * (1/f ))/ ( V * %Ripple) - for a Half wave rectifier Where C= Capcitance in Farads I = Current in Amps f = Switching Frequency V = Nominal voltage in this case 12 V Reji J Thoppil
How many amps does a 1.5 hp dc motor draw?
1 horsepower is equal to 0.7456 kWatts, therefore 1.1184 kWatts will be the power consumption of that motor. The current draw depends on the voltage, simply use the P=UxI or I=P/U formulas to figure out the current draw (P=1118.4 Watts). some voltages: 12Vdc draw 93.2Amps 24Vdc draws 46.6Amps 110Vdc draws 10.17Amps 230Vdc draws 4.86Amps
What is the voltage at car ac compressor?
Most all are 12vdc
Can you hook more than one solar battery charger in series to charge a 36 volt system?
It is important for solar battery charger output voltage to match voltage of battery system being charged. Voltage is additive in series circuits, therefore 3 12VDC solar battery chargers connected in series would provide correct output to charge a 36VDC system.
What type of product would a 12v Ac Adapter be used for?
A 12v AC adapter can be use to power devices that requires 12VDC and up to 500mA. It can also be use with electrical devices that require power but do not contain internal components to derive the required voltage and power from the main power.
Unit of ripple factor?
Ripple, in DC power supplies, is technically unitless. Ripple voltage is specified in Volts/Volt, or a percentage. For example, a 12VDC power supply with 120mV (pk-pk) of ripple voltage is (0.12/12) = 1% ripple voltage.
Can you use 12VDC in New Zealand?
Almost all cars in NZ have 12VDC electrics. Most portable generators which produce 230VAC, will also have a 12VDC accessory output for battery charging, etc. There are no general reticulations of 12VDC.
A relay is an electrical device that?
A relay is a device that takes a smaller source of electrical power and using it to manually control a larger source of electrical power. Typically, a low voltage or low current source, which is more easily manageable with control circuits, sends a signal to energize an electromagnetic coil. When the coil is activated, the magnetic field moves a plunger type device which has contacts that serve as a switch for the larger voltage or current device. In essence, the contacts complete the path for the circuit and allows a load to begin to operate using the higher voltage or current that is supplied through the contacts' connections. A good example is a house air conditioning system's condenser unit (the part which contains the compressor and sits outside of the house). The condenser requires 240 Volts Alternating Current (AC). But the thermostat inside the house uses a 24 Volt power source. When it's time to cool the house down, the thermostat on the wall sends 24 Volt signal to the relay in the condenser unit. The 24 volts causes the coil to energize and makes an electrical connection to the 240volts required to power the compressor. The compressor now runs and your house begans to cool off. Once the set temperature is reached, the thermostat discontinues the 24 volt control signal and the 240 Volts is disconnected from the compressor by the relay, thus shutting off the condesor unit. In cars and vehicles, a relay performs the same function, except that the voltage is not 240 Volts AC. It is 12 volts Direct Current (12VDC). It is used in the air conditioning system in much the same way, but is also used to control the blinking of turn signals, the horn, and in some cases headlights. The voltage remains at 12VDC, but large current flow is controlled by small current flow. For example, 12VDC at 10milliamps through the relay could contol the headlights which may require 12VDC at 5 Amps to shine brightly enough to see at night.
What is the maxium battery voltage allowed on 2001 buick lesabre sine I have components overheating and am wondering if the voltage regulator is allowing too much voltage?
In almost all cases for American 12VDC automotive systems, the allowable range of voltage across the battery is 13.5V to 14.5V, with a typical value of 13.8V to 14.0V. The voltage will vary depending on battery state and how cold it is outside.
How can i make a winding of a transformer of an inverter of 12vDC to 240vAc?
850va 12vdc inverter transformer praemari tans
How can you turn a car headlamp into a desktop lamp?
ITS NOT PRACTICAL BUT FOR THE SAKE OF SOLUTION HERE'S HOW: 1. KNOW WHAT IS THE VOLTAGE RATING OF CAR HEAD LAMP = 12 OR 24 VOLTS DC? 2. KNOW THE WATTAGE RATING OF CAR HEAD LAMP = SAY 100 WATTS 3. KNOW WHAT IS YOUR RESIDENTIAL SYSTEM VOLTAGE = 110VAC OR 220VAC? 4. PURCHASE AN AC TO DC CONVERTER - SELECTABLE 110VAC OR 220VAC INPUT VOLTAGE AND SELECTABLE 12VDC AND 24VDC OUTPUT VOLTAGE WITH A MINIMUM OF 10 AMPERE RATING.
How do you produce 12V adapter?
From what? If you need 12VDC for temporary use, there is a very good 12VDC source in your PC power supply.
What happens if you become the conductor for a 450 amp hour 12V DC circuit?
First, 12VDC is not enough potential to cause YOU any problems. Second, "AMP HOURS" refers to the total amount of electrical energy that has been consumed. You'd probably need to hold on to that 12 volt circuit for quite a while to reach 450 AH. Third, at 12VDC, YOU wouldn't be a good enough conductor to reach 450 AH in anything less than several days. On the other hand, if you raise the voltage a bit, you could start to have problems.
Can you use a 500mA 12VDC transformer on a unit that requires a 180mA 12VDC?
From your question I assume you are referring to a charging adapter for a piece of electronic equipment. I believe adapters also contain a rectifier that rectifies AC voltage to DC. The one I'm looking at at this moment does this. Your thinking is correct, in that any thing that transforms the voltage to what you need is all you need for that step. But if your adapter rectifies the voltage you will need a rectifier with your transformer.
