hi to all. im new here. my project is a 3A transformerless power supply Adjustable 0-30V with auto shut off. using IC is prohibited. can anyone help me?
I already search in google and yahoo for several weeks but i only found 300mA or less. i also try it to make the current higher but the required wattage for the resistor will be higher too and it has a large heat sink also.
tnx for helping me...
I already search in google and yahoo for several weeks but i only found 300mA or less. i also try it to make the current higher but the required wattage for the resistor will be higher too and it has a large heat sink also.
tnx for helping me...