power supply

C

caner

New Member

• May 16, 2014

• #1

hi
Design 5V DC regulated power supply. Assume input voltage of 100 Vpp AC. Use a transformer, a full-wave bridge rectifier and a voltage regulator integrated circuit. You can add LED to the circuit to indicate when the circuit is powered up.
I want to power supply.Please could you help me about the calculation and circuit drawings.
thank you

 

cowboybob

Well-Known Member

Most Helpful Member

• May 16, 2014

• #2

This sounds a lot like a class assignment.

Please show us what you have found, thus far, on the internet (besides ETO).

 

P

Parth86

Member

• May 16, 2014

• #3

hello

If you want to convert ac to dc , you need following things

transformer
bridge rectifier
capacitor
voltage regulator circuit
capacitor
load

I think you need 5 v regulator Ic, 1000 uf capacitor ,
first you need to decide specification
1) what output voltage do you want
2) what output current do you want

read datasheet about component

 

C

caner

New Member

• May 16, 2014

• #4

I drew this circuit.but there are some shortcomings.I need to do 100 Vpss ac for inputI do not know the values of calculation.

 

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C

caner

New Member

• May 16, 2014

• #5

hello vead
thank you in order to help.
1)I need to 5 v dc
2)I will you find current after calculation

 

cowboybob

Well-Known Member

Most Helpful Member

• May 16, 2014

• #6

The schematic you posted (wherever it came from) is exactly what you asked for (even the LED).

I don't understand what else you need.

 

P

Parth86

Member

• May 16, 2014

• #7

look at this, Its just example for your understanding
transformer rating 100v ac to 5 dc
bridge rectifier (it will convert 5v.96 ac into 5.2 dc
filter capacitor 1000 uf
regulator Ic 7805 (It will give 5v dc)
filter capacitor 100 uf
Load

100 v ac<- transformer+rectifier IC+capacitor+regulator Ic+capacitor->load5vdc