New TechiTip added to our website for a 5p (GBP) or 10c (US) FPGA based charge pump power supply. You will find it here
John Adair Enterpoint Ltd. - Some To Be Home of Tarfessock1. The Cardbus Spartan-3E Development Board.
New TechiTip added to our website for a 5p (GBP) or 10c (US) FPGA based charge pump power supply. You will find it here
John Adair Enterpoint Ltd. - Some To Be Home of Tarfessock1. The Cardbus Spartan-3E Development Board.
On a sunny day (Mon, 31 Jul 2006 13:03:34 +0100) it happened "John Adair" wrote in :
When I was young we used to call this a 'Villard' circuit...
A 'charge pump' connacts and disconnects the capacitors with swithes.
Nevertheless a nice solution you have there.
I agree the technique is nothing new. Just a cheap way to do it. How cheap does depend on how you cost your FPGA pin. The other good thing is the size is good even compared to a charge pump with integrated caps. The tracking ability to Vccio is also useful and not so easy to do in an integrated charge pump.
John Adair Enterpoint Ltd. - Home of Broaddown2. The Ultimate Spartan3 Development Board.
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