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Dangerous Prototypes

Dangerous Prototypes => Bus Pirate Support => Topic started by: alexsunny123 on February 13, 2021, 05:21:36 am

Title: PIC programmer 13volt (VPP) supply ?.
Post by: alexsunny123 on February 13, 2021, 05:21:36 am
Hello,

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.

thanks
jackyjoy
Title: Re: PIC programmer 13volt (VPP) supply ?.
Post by: tayken on February 14, 2021, 05:20:08 pm
Hey!

There was a project like that at one point but it's abandoned at this point. But maybe schematics and other resources will help you: http://dangerousprototypes.com/docs/Bus_Pirate_PIC_programming_adapter

There was also another board that was designed for BPv4, which used the PWM output from PIC. But cannot find it in the documents for whatever reason.
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