Text only | Text with Images

Dangerous Prototypes

Dangerous Prototypes => Bus Pirate Support => Topic started by: ian on November 26, 2009, 06:33:16 pm

Title: PIC programmer 13volt (VPP) supply
Post by: ian on November 26, 2009, 06:33:16 pm
I'm putting together a collection of circuits for the PIC programmer 13volt VPP supply.

I'm going to prototype a charge pump and a boost converter. The boost converter will be able to make lots of voltages, up to hundreds of volts, but I plan to clamp it at <20 with a zener. I'm also going to try making the boost converter with a BC547 transistor instead of a FET, because the PIC is only 3.3volts and most FETS want 5v for full-on.
Title: Re: PIC programmer 13volt (VPP) supply
Post by: Scorpia on November 26, 2009, 09:57:45 pm
make sure you check out the schematic for the pickit2. i think from memory its in the back of the manual.
Title: Re: PIC programmer 13volt (VPP) supply
Post by: ian on November 27, 2009, 04:00:26 pm
It looks like the PICKIT2 uses a small boost converter.
Text only | Text with Images

( ! ) Fatal error: Uncaught exception 'Elk_Exception' with message 'Please try again. If you come back to this error screen, report the error to an administrator.' in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
( ! ) Elk_Exception: Please try again. If you come back to this error screen, report the error to an administrator. in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
Call Stack
#TimeMemoryFunctionLocation
10.00862039424session_write_close ( )...(null):0
20.00902171000ElkArte\sources\subs\SessionHandler\DatabaseHandler->write( )...(null):0
30.00902171776Database_MySQL->query( ).../DatabaseHandler.php:119
40.05392310488Database_MySQL->error( ).../Db-mysql.class.php:273