DC 5V 12V 24V 4 Channel Voltage Comparator LM393 Relay Board (5V)

Description: The module name: 4 Channel comparison module Features: through the comparison of the two voltage to the control circuit on or off by Function description: 1.Function: 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. 2.Function two: 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: 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 Testing circuit Working voltage: DC 12V Working current: DC12V:200mA

• Function: 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.