SMAKN DC 12V 4-Channel Voltage Comparator Perfect LM339 LM393 Comparator Module

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About SMAKN DC 12V 4-Channel Voltage Comparator Perfect

*Module name: 4 voltage comparator module *Module size: 93.5 * 64 * 22MM *Operating voltage: DC 12V *Working current: 200MA Product Description: *Module name: 4 voltage comparator module *Operating voltage: DC 12V *Working current: 200MA *Features: By comparing the two voltage control circuit is turned on or off. *Module uses: Automotive circuit modification circuit, industrial equipment, pilot testing, application testing and so on. Function description: *First: the setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) comparison, when the input voltage is greater than the reference voltage, the relay is closed (10-9 closed, 10-11 disconnected), when the input voltage is less than the reference voltage, the relay does not operate. *Second: two to compare respectively input voltage signals A and B, when the voltage signal is S less than the voltage signal B, the relay is closed (10-9 closed, 10-11 disconnected), when the voltage signal A is less than B voltage signal, the relay does not work. *Three features: the setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) comparison, when the input voltage is less than the reference voltage, the relay is closed (10-9 ratio, 11-10 disconnected), when the input voltage is greater than the reference voltage, the relay does not operate. *The reference voltage: This version upgrades for the enhanced version 4 voltage comparator module, add the reference voltage stabilizing circuit, a reference voltage is not receiving module power supply voltage change, adjustable reference voltage range can reach 0-31V. *Module purpose: the automobile circuit hardware, industrial equipment, laboratory testing, application.