Default Dual Polarity Power Supply

[KansaiRobot]

Dual Polarity Power Supply

So related to my other thread.

I have to connect +V and -V (and ground) to a circuit (An amplifier)
so I suppose I need a Dual Polarity Power Supply.

Pardon my ignorance but... do they sell this? or it has to be built?

a clarification on this concept will be very much appreciated.

Kansai

 

[ericgibbs]

So related to my other thread.

I have to connect +V and -V (and ground) to a circuit (An amplifier)
so I suppose I need a Dual Polarity Power Supply.

Pardon my ignorance but... do they sell this? or it has to be built?

a clarification on this concept will be very much appreciated.

Kansai

hi,
You can buy dual power supplies or buy two single power supplies and use one for +V and the other for -V.

 

[Hero999]

https://www.electro-tech-online.com/threads/recreating-ec-circuit.105039/#post858562

 

[magnatro]

dual supply

hi,
this may help.

 

[buckysparks]

Here is a simple way of generating +/- supply with a catalog coupled inductor.

https://focus.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=slva369

 

[Hero999]

So related to my other thread.

I have to connect +V and -V (and ground) to a circuit (An amplifier)
so I suppose I need a Dual Polarity Power Supply.

Pardon my ignorance but... do they sell this? or it has to be built?

a clarification on this concept will be very much appreciated.

Kansai

Post the schematic, it might be possible to convert the circuit to single supply operation.

 

[KansaiRobot]

I am including the schematics.

I asked today one provider and they have some power source but it takes 4 months to get it! In addition to that it seems that I will have to use a DC-DC converter for the "bridge voltage". I am at lost now...

Does anyone have a resource for a AD-DC dual power converter that receives 110 v and provides +V COM and -V? any advice?

I believe Hero999's is for something like this? (sorry I didnt understand magnatro's )

 

[Hero999]

The schematic doesn't make that much sense because it's missing all the part numbers and component values.

The important thing is it gives enough information to know that it needs a dual supply and can't be converted to a single supply.

Here's a couple of links:
https://www.electro-tech-online.com/threads/recreating-ec-circuit.105039/#post858562
http://www.musicfromouterspace.com/analogsynth/WALLWARTSUPPLY/WALLWARTSUPPLY.php