Cdi

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Background

• This project is based on John Clarke design.

I updated the design, with intention to use it in Air-cooled VW Beetle

All Obsolete parts are replaced with newer.

PCB is Redesigned

Still single layer with some jumpers, so cost is kept low

'Clean' pcb, easy to repair, all part references are clearly visible

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John Clarke Design

• John Clarke, Silicon-chip-magazine article A high-energy capacitor discharge ignition system
• John Clarke, Based on an article by ‘Silicon Chip’ (September 1997) A high-energy Capacitor Discharge Ignition system

Freescale

• AN4006 Digital Capacitive Discharge Ignition System using HC05/HC08 8-Bit Microcontrollers

STM

• Application note CAPACITIVE DISCHARGE IGNITION

Silicon Chip (other)

• May 2008 issue 236 Replacement CDI Module For Small Petrol Motors

MISC (to classify)

• MSD 8680 MSD Adjustable Timing Control

Instructions how to connect to cdi

• Programmable CDI/TCI Ignition
• http://www.molla.org/DIY-CDI/DIY-CDI-Trigger/SC-DIY-TCI-Trigger.htm
• http://www.datasheetarchive.com/cdi%20ignition-datasheet.html
• http://www.sportdevices.com/ignition/ignition.htm
• http://www.hpi.be/
• http://www.msdignition.com/info.aspx?taxid=4&taxid2=835
• http://www.eleccircuit.com/electronic-car-ignition/
• http://www.circuitdb.com/circuits/id/164

HALL POINTS REPLACEMENT

• hall points replacement

400px

• Allegro Hall sensors
• Allegro A1101 SOT23 at digikey

• -40°C ~ 150°C

1	$2.02000	2.02
25	$1.79200	44.80
100	$1.56800	156.80
250	$1.40000	350.00
500	$1.28800	644.00
1,000	$0.98000	980.00
2,000	$0.89600	1,792.00

• Allegro A1101 3-SIP at digikey

• -40°C ~ 150°C

1	$1.80000	1.80
25	$1.45000	36.25
100	$1.30500	130.50
250	$1.16000	290.00
500	$1.01500	507.50
1,000	$0.84100	841.00
2,500	$0.78300	1,957.50
5,000	$0.75400	3,770.00
10,000	$0.72500	7,250.00