3 채널 신호 절연 모듈 -AMC1301, 200KHz 대역 3상 모터 신호 절연
(3-Channel Signal Isolation Module -AMC1301)
개요
- 본 제품은 3 채널 신호 절연 모듈 -AMC1301, 200KHz 대역 3상 모터 신호 절연입니다.
- 채널간 절연 최소 전압은 2500VDC 입니다.
- 3 채널로 3상 모터 신호를 절연하는데 사용이 가능합니다.
특징
- Onboard SEPIC DC-DC converter supporting wide supply voltage (3.3V-12V DC).
- The minimum isolation voltage between channels is 2500Vdc, and the minimum input and output isolation voltage is 2500Vdc.
- The output offset voltage is typically 2mV.
- The system gain is 8.2. Changing the differential amplifier or changing the sampling resistor makes it easy to change the current acquisition range.
- External input reference level to change the reference level for different acquisition systems.
- 3.3 VDC power supply, the working current is 100mA, when 5.0VDC power supply, the working current is 65mA.
- Support forward and reverse current acquisition.
- The minimum system analog bandwidth is 200KHz.
문서
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Common Problem:Q: How to configure the positive and negative currents collected by the STM32 internal ADC?A: The default output of the module is 0-3.3V, and the zero current output level is 1.65V. Easy to dock 3.3VAnalog reference MCU or DSP. REF pin outputs zero current level as a reference level, outputThe impedance is 5K.1. The relationship between output signal and current: AMC1301 Gain=8.2, so OUT=Rx*8.2*1=8.2Rx(V)2. The onboard amplifier provides a 1.65V reference for the differential amplifier composed of the AD8605g, that is, the output signal has a midpoint bidirectional swing with 1.65V.3. Output offset: The AMC1301 input offset voltage is typically ±0.2mV. The output offset voltage is typically ±1.92mV without considering the differential amplifier offset and voltage loss.