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Negative Voltage InverterVerified
Based on the Negative Voltage Inverter· 1 other board clones it
From the post
I've done a few layouts using this method, but thought it may be useful to include a little daughter board which will allow you to easily convert any existing positive ground effects to (daisy chainable) negative ground.
Just de-solder the supply and ground wire from the existing board, and solder to this board, then take a couple of new wires from the -9V output and ground connections on this back to the de-soldered pads on the effects board.
5 minute job and you can get rid of your positive ground power supply.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 3 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Capacitors 2 | ||||
| ×1 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47u | 47u | electrolytic; read from the layout by eye | |
| ICs 1 | ||||
| ×1 | ICL7660S | ICL7660S | read from the layout by eye | |
Other boards based on the Negative Voltage Inverter
- Negative Voltage Inverter Effects Layouts (blog)