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Get Your Chips fixed here
GregK
Member
Posts: 82
Threads: 12
Likes Received: 62 in 36 posts
Likes Given: 7
Joined: Apr 2019
Location South Oxon, UK
#16

2nd-Nov-19, 12:06 PM
An F1 DPR chip arrived on my doorstep to be fixed. It looked perfectly OK but would not run when connected to a chassis and tested on a powerbase. After a check of the components, I found that three of the four diodes were not working at all so I replaced them with 1A Schottkys .........

[Image: gallery_11296_1743_37492.jpg]

All still looking OK ....... time to test my handy work ....... [Image: smile.gif]


[Image: gallery_11296_1743_38004.jpg]

Reassembled back onto the testbed, I pulled the throttle back and woomph! [Image: ohmy.gif] ... very bright flames & tons of acrid smoke.

As you can see, the dual MOSFETs, top left, has decided to expire. It is a dual MOSFET bereft of any magical smoke, it is an ex-MOSFET.
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Messages In This Thread
Get Your Chips fixed here - by GregK - 22nd-Apr-19, 08:40 PM
RE: Get Your Chips fixed here - by JasonB - 22nd-Apr-19, 10:18 PM
RE: Get Your Chips fixed here - by GregK - 23rd-Apr-19, 10:05 AM
RE: Get Your Chips fixed here - by GregK - 23rd-Apr-19, 06:09 PM
RE: Get Your Chips fixed here - by Mr Modifier - 25th-Apr-19, 08:23 PM
RE: Get Your Chips fixed here - by GregK - 26th-Apr-19, 08:53 AM
RE: Get Your Chips fixed here - by GregK - 19th-Jul-19, 03:03 PM
RE: Get Your Chips fixed here - by GregK - 25th-Jul-19, 05:49 PM
RE: Get Your Chips fixed here - by GregK - 26th-Jul-19, 10:27 PM
RE: Get Your Chips fixed here - by GregK - 23rd-Aug-19, 01:42 PM
RE: Get Your Chips fixed here - by Johnno - 24th-Aug-19, 08:52 AM
RE: Get Your Chips fixed here - by GregK - 8th-Sep-19, 09:22 AM
RE: Get Your Chips fixed here - by GregK - 23rd-Sep-19, 10:40 PM
RE: Get Your Chips fixed here - by GregK - 30th-Oct-19, 01:35 PM
RE: Get Your Chips fixed here - by steveaca - 31st-Oct-19, 04:58 AM
RE: Get Your Chips fixed here - by GregK - 2nd-Nov-19, 12:06 PM
RE: Get Your Chips fixed here - by GregK - 2nd-Nov-19, 12:07 PM
RE: Get Your Chips fixed here - by GregK - 2nd-Nov-19, 12:09 PM
RE: Get Your Chips fixed here - by edutsilva - 23rd-May-20, 01:20 PM
RE: Get Your Chips fixed here - by claudius - 11th-Mar-21, 11:43 PM
RE: Get Your Chips fixed here - by woodcote - 12th-Mar-21, 09:12 AM
RE: Get Your Chips fixed here - by GregK - 15th-Mar-21, 10:18 PM
RE: Get Your Chips fixed here - by JasonB - 15th-Mar-21, 10:32 PM
RE: Get Your Chips fixed here - by Steven.G - 16th-Mar-21, 10:34 AM
RE: Get Your Chips fixed here - by Anthony B - 17th-Mar-21, 08:51 PM
RE: Get Your Chips fixed here - by Grahamboyd - 9th-Jun-22, 05:10 PM
RE: Get Your Chips fixed here - by woodcote - 10th-Jun-22, 07:11 AM

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