Converting Pulsating Current to DC

  • Thread starter borisgazza
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In summary, to convert a pulsating current to a continuous DC current, you can use a bank of capacitors or a battery. The output should go through a diode to a large capacitor to prevent discharge. For small currents and voltages, a 5000 uF 25 volt capacitor and a 1 amp 400 volt diode can be used. Adding a capacitor across the positive and negative and running it through a voltage regulator can provide a steady DC signal. Alternatively, an LM317 can be used for variable voltage output.
  • #1
borisgazza
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I have a device that generate a pulsating current(2s 2A,2s 0A),
and i would like to convert it to a continuous dc current.
i have no idea of how to do it.

Thanks for your help.
 
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  • #2
just have to hook up a bank of capacitors
 
  • #3
... or maybe use a battery...
 
  • #4
Take the output through a diode to a large capacitor. Large enough so that the capacitor does not discharge significantly when it is not being charged via the diode.

For small currents and voltages, maybe a 5000 uF 25 volt capacitor and a 1 amp 400 volt diode.

The diode is there so that the capacitor cannot discharge back into the power source when it is not supplying power.
 
  • #5
if you need a steady dc signal then put a capacitor across the positive and negative, then run it through a voltage regulator. if you want to be able to vary the voltage then you could try an lm317, I believe you can draw 1 or two amps from it. If you want 12 volts lm7812 and for 5 volts lm7805. You can input any voltage into the voltage regulator (within reason), as long as its about a volt higher than what you want out.
 

Related to Converting Pulsating Current to DC

1. What is the purpose of converting pulsating current to DC?

Converting pulsating current to DC, or direct current, is necessary for many electronic devices to function properly. DC provides a steady and consistent flow of electricity, which is essential for devices such as computers, phones, and other electronics.

2. How is pulsating current converted to DC?

Pulsating current can be converted to DC through the use of a device called a rectifier. A rectifier uses diodes to convert the alternating current (AC) into a steady direct current (DC) by only allowing the flow of electricity in one direction.

3. What are the benefits of using DC over pulsating current?

DC offers several benefits over pulsating current, including a more stable and consistent flow of electricity. This is particularly important for sensitive electronic devices that require a steady power supply. DC also allows for more efficient energy storage and transmission.

4. Can any type of pulsating current be converted to DC?

Yes, most types of pulsating current can be converted to DC. However, the specific method of conversion may vary depending on the type and intensity of the pulsations. It is important to use the appropriate rectifier for the specific type of pulsating current being converted.

5. Are there any disadvantages to converting pulsating current to DC?

One potential disadvantage of converting pulsating current to DC is the loss of some energy during the conversion process. Additionally, the use of a rectifier and other components for conversion adds complexity and cost to electronic devices. However, these disadvantages are often outweighed by the benefits of using DC for many electronic applications.

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