Hi Peter,

I was not really measuring the current. But the circuit is exactly the 
same as PICKit 1 design. So it's driving

1) Before Vpp transistor driving the voltage divider resistors for the 
feedback voltage. From calculation about 13/7.4k + a bit more into the 
A/DC. So I think about 2mA.

2) A load resistor R22, after the Vpp transistor, about 13/10k = 1.3mA

3) The target PIC, which is PIC12F675. From the programming spec. , it 
doesn't mention the value but the require high voltage is generated 
internally. Vpp apply to MCLR is used as a level source and didn't 
take much currect. I think neglect able.

Best regards,
WH Tan



----- Original Message ----- 
From: "Peter Onion" <Peter.Onion@btinternet.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Saturday, July 09, 2005 4:43 PM
Subject: Re: [PIC] PICKIT 2 (was PICKit1 & PIC18F2550)


> On Sat, 2005-07-09 at 08:06 +0800, WH Tan wrote:
>> And now back to a previous discussion...
>
>>  Then I wonder the firmware must be done some tweaking to
>> achive the 'acceptable' level of 'fluctuation' when a load is
>> connected,
>
> That's really not a very well regulated supply!  How much current 
> were
> you taking from the supply ?
>
> Peter
>
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