HOME   |   STORE   |   SCHEMATICS   |   DOWNLOADS   |   CONTACT  

Circuit-Zone.com - Electronic Projects



Thermostat Controller with Relay using LM35 and TL431
Posted on Tuesday, April 26, 2011   •   Category: Sensors

Thermostat Controller with Relay using LM35 and TL431

Here is a simple yet highly accurate thermal control circuit which can be used in applications where automatic temperature control is needed. The circuit switches a miniature relay ON or OFF according to the temperature detected by the single chip temperature sensor LM35DZ. When the LM35DZ detects a temperature higher than the preset level (set by VR1), the relay is actuated. When the temperature falls below the preset temperature, relay is de-energized. The circuit can be powered by any AC or DC 12V supply or battery (100mA min.)

     Temperature Controlled Fan
     Automatic Fan Controller Circuit
     Homemade Metal Detector
     Ultrasonic Parking Assistant
     Digital Thermostat with LED Temperature Display
     IR Proximity Sensor
     Electronic Thermometer using LM35
     Temperature Control using a DS1621 Sensor and a ATtiny 2313 Micrcontroller
     PIR Motion Detector
     Light / Dark Relay Switch
Thermostat Controller with Relay using LM35 and TL431

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



Circuit-Zone.com © 2007-2024. All Rights Reserved.

AC / DC Innveters
AM Radio
Amplifiers
Antennas
Arduino
Audio Attenuators
Audio DAC
AVR
Battery Chargers
CNC Milling Devices
Counters / Frequency Meters
Fluorescent Lamps
FM Radio / Receivers
FM Transmitters
Frequency Wave Generators
Headphone Amplifiers
iPOD Hacks
LC Meter
LED
Miscellaneous
Motor Controllers
MP3 Players
Oscillators
Oscilloscopes
PC Circuits
PCB
Phone Circuits
PIC
PLL Circuits
Power Supplies
RC Servo Motors
Remote Control
RF Radio Frequency
Robots
Sensors
Solar Circuits
Stepper Motors
Stereo Encoders
Test and Measurement
Timer Circuits
TV Transmitters
USB Circuts
USB Interface Adapters
USB Soundcards / USB Headphones
Video
Volume Control