Project | Power Control System |
Date | 2000 - today |
Goals | Control the electrical power of the computers and its peripherials |
Dependencies | http://www.vacs.fr/wiki/index.php/VACS:Projects:Software:Gnu68hc1x http://www.vacs.fr/wiki/index.php/VACS:Projects:Software:Gel |
This is a new project I'm starting. I want to control the electrical power of all computers and peripherials I'm using. It will have 3x 68HC11 organized as follows:
In addition to these, 4 separate 9V supplies will be available. Two of them will be used for power supply of my Axiom Manufacturing boards.
Status | |
---|---|
Schema finished | |
Validated the schema | |
Validated the board layout | |
Board manufactured | |
Board finished | |
Board tested |
The Triacs Power Control module drives 8-triacs using a pulse width modulation system and a zero crossing detection module. The system is driven by a 68HC11 in bootstrap mode and connected to boot from its internal eeprom.
This board was first tested using an Ada95 program that was uploaded using the bootstrap mode. The program was less than 250 bytes. GEL Ada95 Example.
Triacs Power Control Module
Documentation on the chips used by PC Power Triacs board.
Documentation (1) | |
---|---|
M68HC11E | 68HC11E1 |
L7800 | Positive voltage regulator (7805, 7812, 7815, ...). |
BC237 | NPN Epitaxial Silicon Transistor |
BT137.pdf | Triacs (I've used a BT137-600). |
![]() | Transformer (Myrra). |
TL072 | Low Noise Dual J-FET Operational Amplifiers |
MC34064 | Undervoltage Sensing Circuit |
LM35 | Precision Centigrade Temperature Sensors |
CNY17 | TRIOS (R) Phototransistor Optocoupler |
MTC6 | Dual Phototransistor Optocoupler |
ULN2804 | Eight darlington arrays |
(1) Documentation publicly available on various constructor web sites and copied here for archiving.