Difference between revisions of "EL Driver Shield"
From Hackstrich
(Status update, ~50% complete routing.) |
(Updating dimming method and I/Os.) |
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== Ideas / Brainstorming == | == Ideas / Brainstorming == | ||
* One single high voltage converter with separate switches for each channel | * One single high voltage converter with separate switches for each channel | ||
| − | * Dimming using | + | * Dimming using PWM via optoTRIAC on each channel, synced with the HV AC converter |
* Shield will likely need a microcontroller on it | * Shield will likely need a microcontroller on it | ||
| − | ** Inputs: | + | ** Inputs: 2x I2C address setting |
| − | ** Outputs: 1x HV DC converter sync pulse, 1x HV AC converter | + | ** Outputs: 1x HV DC converter sync pulse, 1x HV AC converter polarity signal, 8x optoTRIAC gate outputs |
| − | ** Bus: I2C | + | ** Bus: I2C, RS232 |
[[Category:Current Projects]] | [[Category:Current Projects]] | ||
Revision as of 04:08, 6 October 2011
The EL Driver Shield will drive 8(?) channels of EL wire, generating required voltages on the shield itself. Each channel will support dimming individually.
Project Status
- 2011-10-05: Completed revision 1 schematic, passes checklist. Started board layout, got about 50% complete.
- 2011-10-04: Almost finished HV AC switching/control.
- 2011-10-03: Finished BOM/schematic for HV AC converter/inverter.
- 2011-10-02: Finished designing/simulating HV DC generator in LTSpice, put BOM and schematic for this section together.
- 2011-10-01: Many hours spent in LTSpice putting together a design for the HV DC generation.
- 2011-09-30: Started putting basic design ideas together.
Ideas / Brainstorming
- One single high voltage converter with separate switches for each channel
- Dimming using PWM via optoTRIAC on each channel, synced with the HV AC converter
- Shield will likely need a microcontroller on it
- Inputs: 2x I2C address setting
- Outputs: 1x HV DC converter sync pulse, 1x HV AC converter polarity signal, 8x optoTRIAC gate outputs
- Bus: I2C, RS232
