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23 June 2005 HE104MAN-V8 Manual
Tri-M Engineering Tel: 800.665.5600, 604.945.9565
1407 Kebet Way, Unit 100 Fax: 604.945.9566
Port Coquitlam, BC V3C 6L3 E-mail: info@tri-m.com
Canada Web site: www.tri-m.com
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CHAPTER 1: INTRODUCTION........................................................................................................................................4
1.1 GENERAL DESCRIPTION .....................................................................................................................................4
1.2 FEATURES ...............................................................................................................................................................5
1.3 SPECIFICATIONS.......................................................................................................................................................6
2.1 INTRODUCTION.........................................................................................................................................................7
2.2 POWER CONSIDERATIONS .........................................................................................................................................8
2.3 HE104 CONNECTORS...............................................................................................................................................8
2.3.1 Main Input Power Connector...........................................................................................................................8
2.3.2 Output Power Connector.................................................................................................................................9
2.3.3 Battery Power Connector (Optional) ................................................................................................................9
2.3.4 Onboard PC “Boost” Adaption (Optional).........................................................................................................9
2.4 BUS TERMINATION (OPTIONAL) ................................................................................................................................10
2.5 INSTALLATION ONTO PC104 MODULES.....................................................................................................................10
2.6 JUMPER SELECTION................................................................................................................................................10
2.6.1 LED Jumper Enable/Disable .........................................................................................................................10
2.6.2 +5VDC Low Q/ Noise (Q=quiescent).............................................................................................................11
2.6.3 +12VDC Low Q/ Noise..................................................................................................................................11
2.6.4 Mezzanine Expansion Headers.....................................................................................................................11
2.7 PC/104 BUS INTERRUPTS (OPTIONAL) .....................................................................................................................12
2.8 POWER MANAGEMENT CONTROLLER PM104 (OPTIONAL)...........................................................................................13
2.9 LOW INPUT ALARM .................................................................................................................................................14
2.10 HE104 EFFICIENCY AND HEAT DISSIPATION CALCULATION .......................................................................................15
CHAPTER 3: THEORY OF OPERATION ......................................................................................................................16
3.1 INPUT POWER PROTECTION......................................................................................................................................16
3.2 SWITCHING REGULATOR, +5VDC ............................................................................................................................16
3.3 SWITCHING REGULATOR, +12VDC...........................................................................................................................17
3.4 CHARGE PUMPS.....................................................................................................................................................17
3.5 FILTER CAPACITORS...............................................................................................................................................18
3.6 BUS TERMINATION (OPTIONAL) ................................................................................................................................19
APPENDIX 1: HE104, +5V REGULATOR BLOCK DIAGRAM:......................................................................................20
APPENDIX 2: ADVANTAGES OF USING AC TERMINATION:.....................................................................................22
APPENDIX 3: INSTALLATION HINTS FOR THE HE104 POWER SUPPLY:.................................................................23
APPENDIX 4: VEHICLES ARE AN ELECTRONICS NIGHTMARE:...............................................................................23