817 optocoupler 4-way voltage isolation board voltage control adapter module drive module photoelectric isolation module
When encountering the need for isolation control and voltage conversion in actual work, this module will be used.
It can realize 3.3V or 5V control 3.6---24V voltage level interface. After the control terminal is turned on, the controlled terminal will also be turned on.
The photoelectric isolation has strong anti-interference ability. The latter can drive high-power transistors, MOS tubes and other occasions that require high-voltage drive, and can also directly drive low-power 24V relays.
If it is a pulse signal, please note that the limit of 817 is below 4KHZ, please do not use this module for control signals greater than 4KHZ, it will not work properly.
Module parameters:
1. Signal voltage at the drive end: 3.6-24V both
2. Output voltage range: 3.6-30V (the output current depends on the specific situation but the maximum is not 10MA, the total power is certain, and the voltage and current are inversely proportional)
3. The jumper cap can realize whether the output terminal is high-potential output or pull-down output.
4. All 4 817 channels on the board are independent, which can realize simultaneous control of different voltages, etc.
5: Board size: length: 48mm, width: 38mm, long side hole distance: 42mm, wide side hole distance: 32mm