Difference between revisions of "6 Channel Relay Driver Card"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) |
Blwikiadmin (talk | contribs) |
||
| Line 25: | Line 25: | ||
* [https://qrp-labs.com/ultimatelpf.html Ultimate relay-switched LPF kit] | * [https://qrp-labs.com/ultimatelpf.html Ultimate relay-switched LPF kit] | ||
| − | ** [https://qrp-labs.com/images/ultimatelpf/ | + | ** [https://qrp-labs.com/images/ultimatelpf/assembly_ulpf2.pdf Ultimate relay-switched LPF kit Build Instructions] |
* Takes five [https://qrp-labs.com/bpfkit.html QRP Labs Bandpass Filters] | * Takes five [https://qrp-labs.com/bpfkit.html QRP Labs Bandpass Filters] | ||
Revision as of 15:31, 21 January 2022
Contents
Features
- Drives Ultimate relay-switched LPF kit
- Open collector to turn off relay
- Drives low to turn on relay
- Only turn on one output at a time
- Inputs
- 6 channels (5 used)
- Active-high in to drive relay to on state
- 3.3K to transistor base
- 1 mA for 3.3V drive
- 1.5 mA for 5V drive
- Outputs
- Open Collector outputs from 2N3904 NPN transistors
- Power
- 9-14V power in
- 5V power out to power relays
- DC jack
- 36x37mm card
- 3 PCBs for $11 from OshPark
Ultimate Relay Card
- Jumpers
Connectors
J1 - Input Connector
- N/C
- IN1
- IN2
- IN3
- IN4
- IN5
- IN6
- GND
J2 - Output Connector
- GND
- OUT6
- OUT5
- OUT4
- OUT3
- OUT2
- OUT1
- 5V OUT
Power Connector
- 7-14V input
- Center positive
Testing
- Apply 9-12V to DC jack
- Use LED w/ resistor on output to check 5V
- One channel at a time
- Pull up channel input to +5V
- Check output with LED pulled up to +5V out
CAD
