GP8101 practical application evaluation: Bluetooth module output PWM to 0-10V dimming

zjqmyron

GP8101 practical application evaluation: Bluetooth module output PWM to 0-10V dimming [Copy link]

1. Use a Bluetooth chip to output PWM signal to control GP8101 to output 0-10V analog voltage. The circuit is shown in the figure below:

2. The hardware circuit of the actual application is shown in the figure below:

3. No-load test results

Among them, GP8101 uses 12V power supply and its input PWM frequency is 150Hz. The test results are as follows

Remark:

Voltage tester: FLUKE 77

Customer conclusion: Ignoring the instrument error (since the PWM duty cycle is set by connecting the Bluetooth module via a mobile phone APP, there must be an error, plus the error of the multimeter), the GP8101 no-load output of 0-10V is still ideal.

GP8101_cn_V1.9.pdf (419.68 KB, downloads: 31)

2020-1-6 09:51 上传

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qwqwqw2088

0-10V dimming chip adjustment should be very convenient

hanzhen91

qwqwqw2088 posted on 2020-1-6 15:41 0-10V dimming chip adjustment should be very convenient

For the dimmer market, it can perfectly solve the zero point problem and consistency problem of the op amp solution.