burned IR sensor..

[yara92]

Hello guys ...
we wired the sensor to frc controller ( pwm output ) as a power supply ..
which supplies 7.2v..... i worked for few days .. then it stoped functioning .. i think we fried it ..
my question is : do the pwm outputs supply a larger value of current which the sensor con not accept ?
or there is another error occured ?????



i read this :
http://www.chiefdelphi.com/forums/sh...light=infrared

[Aaron_H]

Read the thread "Dead IR receiver Module". See if those symptoms are the same.

[Alan Anderson]

Originally Posted by yara92

Hello guys ...
we wired the sensor to frc controller ( pwm output ) as a power supply ..
which supplies 7.2v..... i worked for few days .. then it stoped functioning .. i think we fried it ..

Did you recharge the backup battery? That's the source of the 7.2 volts on the PWM pins.

[yara92]

we are tring to fix it by some one who is good with electronics
thank you for your trying to help us

[Al Skierkiewicz]

Mohamed,
The IR sensor is intended to be connected to the +12 volt power through a 20 amp circuit breaker. The power from a PWM output is right at the minimum operating voltage for the sensor board. (7-12 volts as stated in the documentation.)