Can I Step Down DC Voltage and Charge a Battery with Existing Converters?

  • Thread starter rajeshputta
  • Start date
  • Tags
    Dc Voltage
In summary, the conversation discusses the need to step down a 48V 75A DC voltage to 24V 75A and the availability of ready-made converters in the market. The person suggests searching for DC-DC buck converters with the appropriate voltage and current capabilities. They also inquire about the nature of the source and suggest using a microcontroller and Mosfet for a basic converter. For the battery charger, the conversation mentions the importance of matching the current regulation to the battery chemistry.
  • #1
rajeshputta
9
0
1)i need to step down the DC voltage 48v 75amp to 24 v 75amp.
for above any ready made convertor is available in market?
2)i have a dc source 30Vdc 10amp, i need to charge a battery using that, i looking for charging circuit please help.

rajesh.p
 
Engineering news on Phys.org
  • #2
hi there

do some googling on DC-DC buck convertors, you may well find some commercial systems with the voltage and current capabilities you require
 
  • #3
Rajesh,
Can you share with me the nature of your source. Perhaps I know of something to simplify this problem.
 
  • #4
i have bench type dc Voltage source, it have duel channel (+ve) and (-ve), and also available make adjustable of load amp,
it is i am using for trouble shooting of electronics.
 
  • #5
75A is not a trivial amount of current... also nearly 2KW overall, so 2-3% losses 40W heat... and then how clean do you need the 24V to be? I doubt you will find an economical converter that specific. For a basic converter not too difficult of a build for a small uC ( PIC) and a 100A Mosfet ( module?)
Similar for the battery charger - for batteries the current regulation needs to match the battery chemistry. There are controller ships for most types, but again probably not an existing system ( perhaps a marine system made for 36V to 12V if LA Battery( assuming) )
 

FAQ: Can I Step Down DC Voltage and Charge a Battery with Existing Converters?

1. How does a transformer step down DC voltage?

A transformer is a device that uses electromagnetic induction to transfer electrical energy from one circuit to another. It consists of two or more coils of wire wrapped around a core. In order to step down DC voltage, a transformer must have a varying magnetic field. This can be achieved by using an AC power source to create the varying field, which will then induce a current in the secondary coil and step down the voltage.

2. Can a transformer be used to step down DC voltage?

Yes, a transformer can be used to step down DC voltage. As mentioned before, a varying magnetic field is required for a transformer to work, and this can be achieved by using an AC power source. However, a rectifier can also be used to convert DC voltage into pulsating DC, which can then be used to create a varying magnetic field and step down the voltage.

3. What is the difference between a step-up and a step-down transformer?

A step-up transformer is used to increase the voltage, while a step-down transformer is used to decrease the voltage. This is achieved by having a different number of turns in the primary and secondary coils. A step-up transformer will have more turns in the secondary coil, while a step-down transformer will have more turns in the primary coil.

4. What are the factors that determine the amount of voltage step-down in a transformer?

The amount of voltage step-down in a transformer is determined by the ratio of the number of turns in the primary and secondary coils. For example, if a transformer has a 1:2 turn ratio, the output voltage will be half of the input voltage. Other factors that can affect the voltage step-down include the frequency of the AC power source and the core material used in the transformer.

5. Are there any safety precautions to consider when working with transformers for stepping down DC voltage?

Yes, there are some safety precautions to consider when working with transformers. Firstly, always make sure to use a transformer that is rated for the voltage and current you are working with. It is also important to handle transformers with caution as they can produce high voltages. In addition, always ensure that the transformer is properly grounded and avoid touching the terminals or wires while the transformer is in use.

Similar threads

Why can a capacitor be charged by a battery (DC)?
Replies
2
Views
1K
Making a Step-up DC transformer
Replies
4
Views
2K
System design for charging battery from turbine alternator
Replies
8
Views
1K
Can LCL Filter Convert AC to DC for Half Bridge Section?
2
Replies
39
Views
3K
Modifying generator windings to convert output from 220V to 55V.
Replies
8
Views
2K
Manually charging batteries
Replies
11
Views
1K
High Pass Filter Working Principle
Replies
15
Views
1K
Revamp Your Motorcycle's Charging System for 12v DC: Stator Winding Help
Replies
3
Views
3K
Battery Powered Electric Motor and Charging Requirements
Replies
5
Views
2K
Safe to charge a Lithium Battery with a Voltage Limit?
Replies
2
Views
1K

Hot Threads

Recent Insights

Back
Top