When the input status changes, the output updates more or less instantly. A continuous comparator reads the inputs and reports the results in real time. ICs are also available with a range of reference voltages.Ĭomparators may be continuous or clocked. In many devices, the reference voltage is integrated onto the chip. Typically, a comparator looks at a variable voltage in comparison to a stable reference. The usual implementation is with two inputs for the voltages that are to be compared and a single output that by mean of a logic high or logic low state indicates the higher of the two inputs. Please contact us with your requirements.A comparator, as its name suggests, compares two voltages or currents and determines which is higher. We can also make custom designs based on any of our products. Please contact us for overseas shipping prices Twin Voltage Comparator Circuit (pair of light sensors and temperature sensors included)Īdditional Temperature Sensors (Pack of 2)Īll prices include UK postage and packing. Supplied with full instructions, circuit description and examples Relay normally open and normally closed terminal connections Normally on or normally off jumper selection

PCB track thicknesses, clearances and screw terminals are designed for these levels. The relays are rated to switch mains voltages at currents up to 5A. A jumper link selects whether the relay turns on above the threshold voltage or whether the relay turns off at the threshold voltage.Įach circuit operates independently, apart from a shared 12v supply. The circuit has an adjustable multi-turn pot to set the trip point at which the relay switches over. Supplied with a pair of temperature sensors and a pair of light sensors to get you started.Įach circuit consists of a simple voltage comparator circuit with a screw terminal input for a sensor of your choice. Handy for use as a simple thermostat, light activated switch or level detector. Kits and Products > Twin Voltage Comparator CircuitĪ pair of simple voltage comparator circuits on one PCB which can be set up to work as two independent circuits or as a combined 'window' comparator. Circuit Innovations - Twin Voltage Comparator CircuitĬircuit Innovations Taking your electronics ideas and turning them into reality

Comparator relay circuit