High temperature alarm systemHigh Temperature Alarm Circuit » High temperature alarm systemHigh temperature alarm system. The alarm is activated when the temperature becomes higher than the default setup. The thermistor should be located away from the rest of the circuit, it is to prevent damage due to the heat. You can use 9V battery to operate this circuit, but if it is mounted in a fixed position, then we can use a fixed voltage power supply.
 High Temperature Alarm Circuit This is the circuit design of high temperature alarm system. The circuit will warn us for any temperature higher than default setting which already predefined before. Temperature control is done by the thermistor TH1, which is a negative factor. The resistance varies between 10K Ohm at 25° C and about ...  Boiler Control The function of this Boiler Control circuit is to control the water temperature in a hot-water heating system. What the idea does is to reduce the boiler temperature as the outside air temperature increases. The op amp is used as a comparator. Thermistor TH2 and R2 form a voltage divider ...  Smart Car Alarm Timer Circuit This is the circuit diagram of smart car alarm timer. This circuit is clever compared to common car alarm design. When this car alarm timer circuit is activated it will make the alarm remains activated for 80 seconds. It has 15 seconds delay for the driver to enter and deactivate, ...  Miniature Loop Alarm circuit This is a very simple and cheap alarm which require very small power consumption, you may use 9V battery to run this circuit. It uses two transistors to drive the buzzer. The buzzer will sound until you turn the whole circuit off or connect the wire loop back to the ...  Modular Bulgar Alarm circuit This is the schematic diagram of modular bulgar alarm circuit: About bulgar alarm circuit: This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision for both normally-closed and normally-open contacts, and a 24-hour Personal Attack/Tamper zone. It is connected permanently to the 12-volt supply ... |
