power_supplies
Table of Contents
Power Supplies
Find Here some schematics for DIY Power Supplies. It could help to power your midibox !
Be Aware of high voltages! - Stay Safe !
+5V DC / +9V DC / +12V DC
5V Parts List
| Description | Type | Qty | Designation |
|---|---|---|---|
| LM7805 | VR | 1 | U1 |
| 1N4007 | Diode | 4 | D1,D2,D3,D4 |
| 220 | Resistor | 1 | R1 |
| 22µF/25V | Capa Elec | 1 | C2 |
| 2200µF/40V | Capa Elec | 1 | C1 |
| 9VDC 15VA | Transfo | 1 | TR |
9V Option
Replace:
- U1 > LM7809
- TR out> 12VDC
- R1 > 390ohms
12V Option
Replace:
- U1 > LM7812
- TR out> 12VDC
- R1 > 510ohms
-12V/+12V DC
A designed has been purposed There
-15V/+15V DC
Parts List
| Description | Type | Qty | Designation |
|---|---|---|---|
| LM317T | VR | 1 | U1 |
| LM337T | VR | 1 | U2 |
| BDX54 | PNP | 1 | Q1 |
| BDX53 | NPN | 1 | Q2 |
| 10A04 | Diode | 4 | D1,D2,D3,D4 |
| 10 | Resistor | 2 | R1,R5 |
| 120 | Resistor | 2 | R2,R6 |
| 820 | Resistor | 2 | R4,R8 |
| 1320(1,1k+220) | Resistor | 2 | R3,R7 |
| 1µF/25V | Capa Elec | 2 | C2,C5 |
| 22µF/25V | Capa Elec | 2 | C3,C6 |
| 10000µF/40V | Capa Elec | 2 | C1,C4 |
| S05K400 | Varistor | 1 | VR |
| 15VDCx2 90VA | Transfo | 1 | TR |
For Fine Voltage Tuning replace R3/R7 by a 2K Multi turns Trimpot.
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power_supplies.txt · Last modified: 2016/06/29 00:05 by psykhaze