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
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB System
$45.75Battery Protection ModuleAdd to cartNote:The protective plate cannot be used in parallel.SpecificationsContinuous discharging current:45AInstantaneous diacharge current:100ACharging voltage:67.2VCharging current:45AOver-charge detect:4.28±0.05VProtect delay:100msOver-charge release:4.08±0.05VBalanceDetect voltage:4.2±0.025VRelease voltage:4.2±0.05VBalance current:60±5mAOver-discharge:2.55±0.08VOver-discharge detect delay:50mSRelease voltage:2.9±0.1VDetect voltage:150mVDetect delay:15mSCurrent detect:130±10AResistance:≤15mΩWorking current:≤60uASleep current (when over-discharge):≤10uAWorking temperature:-30~80→Size:120 x 60 x 9mm:Details:Specification:Unit:RemarkCharge:Charging voltage:71.4:VRecharging current:45 (max):ADischarge:Continuous discharge current:45 (max):AInstantaneous discharge current:150 (max):AOvercharge protection:Overcharge detection voltage:4. 25 ±0.025:V:Single coreOvercharge protection delay:100:mSOvercharge release voltage:4. 05 …
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB SystemRead More
25W 5V Foldable Solar Panel Solar Power Bank Pack with Dual USB Port for Backpack Camping Hiking
$78.68Smart Robot & Solar PanelAdd to cartFeatures∵ High-Efficiency Ponocrystalline Cell, up to 19%.∵ Eco-friendly & durable material.∵ Applied in charging 5V device as a power bank.∵ Portable, foldable and lightweight, with buckle to be fold firmly.∵ Produce continuous stable output even in cloudy day.∵ Suitable for outdoor activities, outdoor working or emergency.ParametersPmax:25WUSB Output Voltage:5VUSB1 Output Current:2000mA USB2 Output Current:1200mAQuantity of Single …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328
$66.77DIY Electronic KitsAdd to cart3Pcs DIY Multifunction Transistor Tester Kit For LCR ESR Transistor PWM Signal Generator M328FeatureA key measurement operation , auto power off delay . Shutdown current is only 20nA, support battery operation.Automatic detection PNP and NPN type bipolar transistors , N, P -channel MOSFET, JFET FET , diodes , two diodes, thyristors , resistors , capacitors …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328Read More
5pcs 2 Slots AAA Battery Box Battery Holder Board with Switch for2xAAA Batteries DIY kit Case
$9.36Other Module BoardAdd to cartSpecificationsSupport Model:AAA BatteryShell material:ABS Cable:1007 (150mm)Metal spring:carbon steel nickel plating by NCAA salt spray test, stainless steel spring.Size:53*24*13 mmPackage Included5 x 2 Slots AAA Battery Holder Plastic Case Storage Box
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module Converter
$86.01Sensor & Detector ModuleAdd to cartDescriptionThis is a conversion board for the PCA9306 dual bidirectional voltage-level translator. Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice.The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that’s operational on the low side from 1.0 V to …
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module ConverterRead More
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10A
$18.51Relay ModuleAdd to cartDescriptionTiming from Microseconds to HOURSSimple CircuitryPrecision Pulse Generation / Timing,FMAX = 500 KHzUse a single 4 to 16 VDC supplyExcellent temperature stability 0.005% / °CAdjustable Duty CycleCountless Application and Information SourcesChip (NE555) CharacteristicWhen unconnected with the supply power, the state of the module is inchNOinch [ normal open ], CB and COM are conductive. CK …
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10ARead More
Reviews
There are no reviews yet.