Soldering Practice Board Electronic Electronic DIY Kit Temperature Over Temperature Monitoring Detection Control Kit
$6.55
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Circuit principle
The thermistor RT is connected to the input of U1A. It adjusts the voltage divider with resistors R2 and RP to make the input voltage of UIA high and the output voltage low. When the temperature exceeds the set temperature limit, because the resistance of RT becomes smaller, the voltage at the U1A input terminal is low through the voltage dividing circuit, and the output is high after being inverted. On the one hand, this high level is added to the 8-pin of the control end of the multivibrator composed of U1C, U1D and the RC circuit. The base of transistor VT1 is added to make it conductive, and the relay is energized to attract; on the other hand, after the U1B inverting output is low, the light-emitting diode LED emits light.
Kit parameters
Power supply voltage:DC 4.5-5.0V
Board size:32 * 72mm
Features
The over-temperature monitoring automatic control circuit is composed of four 2-input NAND gate digital integrated circuit CD4011 and a thermistor RT to form a measurement and control circuit and a siren sound generating circuit. The relay K is used as the execution circuit. The thermistor RT acts as a temperature sensor. When the temperature exceeds the set temperature, the relay K is driven by the transistor VTI. Can be used for over temperature monitoring alarm, normally open and normally closed contacts of relays can drive a variety of controlled equipment and more.
Package included
1 x Temperature Over Temperature Monitoring Detection Control Kit
Weight | 0.025 kg |
---|
Customers Also Viewed
3pcs DC 1.8V 3V 5V 6V 12V 2A PWM Motor Speed Controller 0~100% Adjustable Drive Module 1803B
$14.99Motor PWM Speed ControllerAdd to cartFeatureThe input power range is DC 1.8-15V . Use a 2A resettable fuse to protect the controller.Potentiometer with switch function. Operating instruction:Before you attempting to wire the controller, make sure power is off.WARNING:TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR. Turn on the power, and adjust the potentiometer. The LED indicates …
Flax Liner Cloth Fiber Cloth Bakers Proofing Couche for Proving Bread Pans Kitchen Tool Fermentation
$19.83FabricsFibers & TextilesAdd to cartDescriptionThis flax liner cloth is made of flax linen material, natural, untreated, unbleached.SpecificationMaterial:Flax LinenColor:As picture shownSize:(L)X(W)45X36cm/17.72inchX14.17inch(appr.)Features1.Made of flax linen material, natural, untreated, unbleached.2. A couche is used to proof the bread.3. Plenty of surface to work multiple loaves.4. Do not bake in oven. It can not withstand the heat.5. Finished seam on both sides so …
99900W 12V Smart Ultrasonic inverter Electro Fisher Fishing Machine Ultrasonic inverter Safe Protection Fisher Fishing Shocker 20 Field Tube
$170.09InvertersAdd to cartSpecificationsColor:BlackDrive:Intelligent drive computer boardSecurity protection:12 intelligent security protectionsScope of application:1-3mApplicable depth:3mThyristor:2 * energy-efficient siliconPower field tube:20Applicable battery:12V 45A or moreProduct net weight:1.8KGSize:290 * 60 * 145mmOverload Protection:Yes (120A)Low Voltage Protection:Yes (Less than 9V/DC protection )High Voltage Protection:Yes (Exceed 15V/DC protection )Over-temperature Protection:85°CFeatures– Short-circuit Protection&Reverse Polarity Protection&Waterproof Protection.– High power& Low energy consumption& Excellent results, the …
CMP03 3A-12V Charge and Discharge Controller Solar Charge Controller Solar Panel
$30.36Solar ControllersAdd to cartSpecificationModel:CMP03Rated Voltage:DC12VMax Current:3Avoltage of solar panels:36W(3A,12v)Charge-stop Voltage:14.4VCoefficient of Stop Voltage and Temp:-3mV/degree/cellSupply-stop Voltage:10.6VSupply-resume Voltage:12VLight Control Mode:Visibility 20MWorking Temp:-10- +40degree;Weight:33gFunction1. Prevent the battery from over charging, over discharging and Reverse discharging to solar panel during nights.2. Controller will start the lighting system in the evening automatically according to the surrounding luminance.Indicator1. One charging indicator, light indicates …
CMP03 3A-12V Charge and Discharge Controller Solar Charge Controller Solar PanelRead More
8 PCS Diving Equipment SMACO Scuba Diving Cylinder Oxygen Reserve Air Tank
$443.46Electrical Pump & ValveAdd to cartSpecificationBreathing Oxygen Cylinder Capacity:0.5L Material:Aviation Aluminum Oxygen Cylinder Weight:1040g Oxygen Cylinder Dimension:φ6*35.5cm (2.4*14′) Air Capacity:3.0 Cu.Ft / 85 Litters Max. Pressure:3000Psi / 200bar / 20MpaMax. Dwell Time Underwater:10mins Pumping Time:7-10min Features1. The 0.5L Oxygen Cylinder Allows The Diver To Stay 7 Meters Underwater For 6-10 Minutes (Depending On Individual Lung Capacity And Depth Of Diving), …
8 PCS Diving Equipment SMACO Scuba Diving Cylinder Oxygen Reserve Air TankRead More
5pcs 40x40mm thermoelectric Power Generator Peltier Module TEG High Temperature 150 Degree
$30.60Electronic Accessories & SuppliesAdd to cartFeatureColding side posts with the wordsHeating side is emptyRed wire to positive, black wire to the negative, it generate electricity when the temperature difference happenedSpecificationModel:SP1848-27145 Color:whiteLead Length:about 30CMSize:40MM x 40MM x 3.4MM20 degree temperature difference:open-circuit voltage 0.97V, generated current:225MA40 degree temperature difference:open circuit voltage 1.8V, generated current:368MA60 degree temperature difference:open circuit voltage 2.4V, generated current:469MA80 …
5pcs 40x40mm thermoelectric Power Generator Peltier Module TEG High Temperature 150 DegreeRead More
Reviews
There are no reviews yet.