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Item Type: Voltage Sensor Module
Voltage Transformer: On-board precision miniature voltage transformer
Operational Amplifier Circuit: On-board high-precision operational amplifier circuit, accurate signal sampling and appropriate compensation functions
Analog Voltage Output: The module can measure AC voltage within 250V, and the corresponding output analog quantity can be adjusted output signal
Signal Output: Sine wave, the middle value (DC component) of the waveform is 1/2VCC
Power Supply Voltage: 5-30V
Instructions:
1. When L, N is connected to AC220V. VCC, GND input DC5V-30V. OUT, GND connected to the oscilloscope can get a sine wave.
2. Adjust the potentiometer can change the amplitude of the output waveform (the middle value will not change during the adjustment process), the waveform of the range of 0-VCC;
3. If the waveform is distorted in the process of increasing the amplitude, it can be solved by appropriately increasing the operating voltage VCC. If you want the middle value of the waveform to move to 0 o'clock, you can connect a capacitor of about 105pF in series with OUT to filter out the DC component in the waveform.
Package Included:
6 x Voltage Transformer Module
1 x Dupont Line
JESUS EUGENIO RICARDEZ DE LOS SANTOS
Reviewed in Mexico on August 22, 2024
No funcionan, se quedan marcando solo la mitad del voltaje de DC con el que se alimenta y de ahi no cambia de acuerdo con el voltaje de alterna que sensa.
Stephanie
Reviewed in the United States on July 2, 2023
I hooked this to my scope alongside a probe directly connected to AC (DANGER: Don't attempt this yourself unless you know what you're doing).AC in pink, this board in yellow.As you can see, it appears to introduce a phase lag. It also has a distorted shape. Sadly this makes it useless for my application where I need to measure true power.If you don't care about phase purity or shape, (e.g. you're just interested in relative voltage or frequency) then this should work for you.
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