Development of the circuit board of the order cabinet

Development of the circuit board of the order cabinet

Product functional performance parameters:

1. The seven buttons are respectively for the on-off function, two sets of temperature setting plus and minus function, and up and down lighting switch function

2. With power failure memory function, connect the power supply and keep the state before the last power failure

3. The upper two digits of the four digit digital tube display the set temperature, the lower two digits display the actual temperature, and NTC error indication

4. The four LEDs are startup trademark indication, compressor working refrigeration indication, and temperature below zero indication

5. NTC senses the temperature. When NTC is abnormal, the nixie tube will give an abnormal alarm indication. The compressor will work for an hour and rest for a quarter of an hour, which will not cause the fresh food to deteriorate.

6. After the compressor works continuously for 3 hours, the compressor must be stopped for a quarter of an hour to protect the compressor

7. Rated voltage: 220V/AC

8. Control mode: touch the switch

9. Display mode: LED display, nixie tube display, LCD display

10. The circuit scheme and PCB size can be designed according to the functional requirements and structural dimensions of customers

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