Dual Supply +5 and -5 using 555
In this circuit the 12 DC, two wire is converted to three wire +5 and 0 and -5 dual supply useful for op-amps or other interface circuits. You could use 7805 and 7905 low...
Tagged: SMPS
+5 to -5 using a 555 Astable Multivibrator
This is a very simple -5V supply using one 555, useful for analog blocks using FET Opamps using low power. This circuit came up when i had to design limited by inventory. It worked...
Single Chip dual power supply
message: Hello, I want to know the single IC which can provide Both + V and -V from a single +Vin supply.. I need this for my dual supply opamp.Reply me as soon as...
Switching Battery Charger with L296
This is a a circuit from my Power Supplies Section. There may be some documentation errors in my circuits. If you are used to building and troubleshooting circuits then it is ok. This circuit...
100kHz Half Bridge Convertor – SG3525
This is a SMPS Circuit improved over the Application Note in the book SGS Motion Control Application Manual. This worked well. It helps you learn more about High Frequency Power Supply Design.
Winding Transformers and Coils
i would need your help in designing transformers for rechargeable lamps. i really don’t understand what the dots in front a coil stands for. all help (including pictures) would be really appreciated. my own...
Lighting a LED String – Serial Drive
Hi there, my name is steve. I would like to ask you about the best way or the most efficient way to supply LEDs. there are 36 small LEDs or 72 small LEDs (5mm)....
Digital 5V Power Supply using L296
This circuit is derived from an application note of L296, It is a Power Switching Regulator from ST. The advantage of using a switching regulator is that there is not much Heat Dissipation in...
