Smart Capacitor power supply
Description
Table of Contents:
- Smart Capacitor power supply
- Circuit Description
Contributor:
D.Mohankumar This capacitor power supply can deliver 12 volt DC and 100 mA current to power low current devices. It is provided with surge protection and is totally isolated from mains supply using two capacitors in the phase and neutral lines. So the connected device is safe even if the phase and neutral lines changes.
Transformer less power supply is used to reduce size and cost of electronic gadgets. Only low current devices can be run in transformer less power supply, since the output current is low. Unlike resistive type power supply, capacitive power supply isolates mains from the circuit and drops mains to low volt AC without generating heat. So power loss due to heat generation is negligible. The power supply works safely unless the capacitor burn out due to very high surge current. Costly equipments should not be connected to capacitive power supply.
Do not use this power supply for testing prototypes or as battery charger.
Do not construct this on Bread board. Use common PCB.
Comments (3)
Thank you for your valuable
Thank you for your valuable information.
i expect more isolation in this case . that is this is tfr less supply . But why we give a small tfr use here at low cost that is i think input voltage is if less than 100V b/w the capacitor after droping the voltage across the it.
Pls . give me your valuable suggestion .....
Shibu AS
Pachalam. Ernakulam
Shibuas@ymail.com
what is the rating of
what is the rating of capacitor ?
also please tell how to convert it to 5 v power supply ?
1.what is a smart
1.what is a smart capacitor?
what are its applications?
please explain its working?
2.Please explain how MOSFET can be used as a switch.