Maximum input voltage for this circuit is 30 volts . Thus, the output, we get ±15 Volts. current load – 1A .
The principle of the converter similar to a compensation voltage. DA1 exemplary chip compares the voltage to the noninverting input with resistor divider R1-R3 with the voltage coming to the inverting input from the output device. According to the corrected output signal, which regulates unlocking / locking of the output transistors. The maximum voltage is limited only by the supply voltage operational amplifier. A current output – set output transistors. Such is the useful thing.
Parts list :
| Notation |
Nominal |
| C1 | 100µF/25V |
| C2 | 100µF/25V |
| R1 | 510Ω |
| R3 | 510Ω |
| R2 | 1KΩ |
| R5 | 200Ω |
| R4 | 10KΩ |
| T1 | KT815 |
| T2 | KT816 |
| DA1 | K140UD7 |
How to generate +2.5 and -2.5 voltages from a single +3 Volts Battery