Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Intercom with two stations hard wired

Status
Not open for further replies.
Two batteries in direct parallel, with no regulating circuitry of any kind, usually is bad for the batteries. Which ever one has the lower voltage, even by millivolts, acts as a load on the other. This can shorten life enough to do something about it.

Yes on the schematic mod.

ak
 
Two batteries in direct parallel, with no regulating circuitry of any kind, usually is bad for the batteries. Which ever one has the lower voltage, even by millivolts, acts as a load on the other. This can shorten life enough to do something about it.

Yes on the schematic mod.

ak
I did not think about the differing voltages! Doh! In essence, the battery with the slightly higher voltage would try to "charge" the other battery, eh what?

Why a Schottky diode rather than a regular rectifier diode? I assume because the lower forward of the Schottky diode would have less of an effect on the voltage each battery can provide to the circuit?
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top