Virtual battery operation

[A'af]

Hey, is there anybody here know about Virtual battery operation....invented by Technics

 

[pinkmouse]

Hi A'af

Nothing virtual about it, it's just a battery and a charger built into the preamp, so the pre runs on battery most of the time and charges up when it gets flat or when it's not in use.

 

[A'af]

I mean exactly not mention that, here "Virtual Battery Operation" really don't use any battery at all

 

[pinkmouse]

What kit exactly is this used in?

 

[Electro]

Use several farad capacitors then connect them to the op-amp. The op-amp should last for a few months to years with out charging the capacitors again.

Yes, you can use a capacitor instead of using batteries in a pager or beeper. It should last for a few weeks on vibration mode.

Look up BEAM robots and Super Capacitors.

 

[topicreader]

Hello!

The "Virtual Battery Operation" solution used Andrea Ciuffoli and he "stoled" from the Technics (but he confess). Here is her amplifier the Power Follower 99:
www.audiodesignguide.com/my/Follower_99c.gif
I think the circuit is a through regulator with Mosfet.

 

[A'af]

But How in Theory and application is used for, perhaps can help with the article, for attn Thanks