Skip to main content

Fan Controller Using Just Two Component


Fan Controller Using Just Two Component Circuit diagram. The Maxim MAX 6665 (www.maxim-ic.com) provides a complete temperature-dependent fan controller. It can switch fans operating at voltages of up to 24 V and currents of up to 250 mA. The IC is available from the manufacturer in versions with preset threshold temperatures between +40 °C (MAX6665 ASA40) and +70 °C (MAX6665 ASA 70). The device’s hysteresis can be set by the user via the HYST input, which can be connected to +3.3 V, connected to ground, or left open. The following table shows the hysteresis values available:
HYST = Hysteresis
open = 1 °C
ground = 4 °C
+3.3V = 8 °C

Fan Controller Using Just Two Component Circuit diagram:
Fan_Controller Circuit Diagram
Fan Controller Circuit Diagram

The other pins of the SO8 package are the FORCEON input and the status outputs WARN, OT and FANON. The test input FORCEON allows the fan to be run even below the threshold temperature. The open-drain output WARN goes low when the temperature rises more than 15 °C above the threshold temperature, while the open-drain output OT indicates when the temperature is more than 30 °C above the threshold. The push-pull output FANON can be used to indicate to a connected microcontroller that the fan is turned on.


Author: G. Kleine Copyright: Elektor Electronics

Labels:

Comments

Post a Comment

Popular posts from this blog

A basic Arduino Solar PV Monitor

I have just recently had solar pv installed, mainly to future proof my energy costs, I do not expect it to be like drilling for oil in my back garden, however the return looks to be encouraging. The install gives you another single unit meter, from this you will see the total amount the panels produce, but that is about it. I wanted to know how much the production was as it was happening, I discovered the light blinks on the front of the meter will flash 1000 times for each kWh of electricity which passes through. The rate of the flashing of the LED tells you how much power is currently passing through the meter. [ ]
Post a Comment
Read more

Schematic Audio Amplifier with IC AN7102S

This Schematic use IC AN7102S , this is setereo amplifier and have output speaker 7,5 mW with impedance 32 Ohm . Supply need 1Volt to 3 Volt , wow this amplifier low voltage. You can use this amplifier on radio is use battery . With just one battery with voltage 1,5 Volt you can play this amplifier. See this Schematic below : Click to Enlarge Datasheet IC AN7102S Vcc                   =  1-3 V Pout                 = 2X 7,5 mW RL                    = 32 Ohm Ft                      = 20hz - 20Khz Icco                  = 7 mA Package         = DIP-18 Manufactered = MATSUSHITA
Post a Comment
Read more