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To reduce 12VDC to 7VDC you need a voltage divider in the ratio of 7/12, such as two series resistors of values 5KOhms and 7KOhms.
Of course, this "trite" answer (the resistor divider) depends on how much power you need to supply, and how much source to load current regulation ratio you need.
You might need to follow this up with an class C amplifier, compensating for the 0.6 volt drop across the base-emitter junction.
You might need an OP-Amp controlled emitter follower, with a zener reference.
For high current applications, you might even need a switching regulator.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThat depends on the application.
If it's 32 volts alternating current, you can use a transformer.
If it's 32 volts direct current you can use a solid state regulator.
Either way, if you want to go quick, dirty and cheap, you can just use a resistor in series with the load.
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What is the equivalent of 36 amps at 12 volts at 24 volts?
36 is to 12 as 18 is to 24.
Why output voltage is not regulated?
12 volts
How do you reduce 48 volts dc to 12 volts dc with resistors?
Yes. You can use a voltage divider. Say, for instance, one 1KOhm resistor in series with a 3KOhm resistor. Connect the 3k resistor to the 48 volts and connect the 1k resistor to ground. The 1k resistor will have 12 volts acress it. These resistors need to be at least 1 watt each as they are going to dissipate 0.576 watts and get warm. Now, if you attempt to pull power from the 1k resistor, note that regulation will be poor because the impedance of the load will go in parallel with the 1k resistor and change its value.
How much watts in one ampere?
Since the equation for watts is: Volts * Amps = Watts that would mean 12 Volts * 1 Amp = 12 Watts
How do you reduce 230 volts to 40 watts?
You are working with two different values. Watts is the product of amps times volts. W = A x V, as you can see if there is a value missing then there can be no answer given.
How do you reduce 12 volts to 3.7 volts?
If the voltage is AC a transformer can be used.
I'm using a 18.5 volts 3.5 amps charger to charge a 12 volts battery I want to reduce voltage to 15 volts and current to about or a little less than 2 amps How to reduce charging current and voltage?
You need a regulator.
How do you get 12 volts from an 18 volt transformer?
Reduce the primary voltage and the secondary will also drop.
Is a marine battery 12 volts or 6 volts?
12 volts
How do you hook up a car radio in a house?
You need an ac-dc converter to reduce your house voltage to 12 volts
What is the potential difference of 12 and 120 volts?
The potential difference of 120 volts and 12 volts is 108 volts.
Is 12 volts peak to peak the same as 12 volts ac?
No. 12 volts peak to peak would be 6 in the positive polarity and 6 negative polarity. Simply saying 12 volts AC would be 12 volts in each polarity or 24 volts peak to peak
What is most commonly used to reduce 230 volts to 110 volts on site?
Most commonly is a transformer used to reduce the voltage. You can get it in the shop with electronic eq.
How many volts is YTX 14-BS?
12 volts, 12 amps
Is a 2004 Harley Davidson battery 6 or 12 volts?
It is 12 volts.
What voltage should a 12v battery be charged at?
12 volts!!! 12 volts!!! Real Answer 13.1 volts (Depending on Battery)
Is sukida 50cc 12 or 6 volts you need to charge battery?
12 volts
