A watchdog circuit diagram

Posted on Mar 28, 2007

As Figure: when the operation of the circuit as long as the timing of the reset pulse to the CD4060, we can guarantee the state ended in Q1, so that the NMOS transistor control

A watchdog circuit diagram
Click here to download the full size of the above Circuit.

led in the on state power to the processor circuitry. The advantage of this circuit is that the timing of the time can be relatively long, a few minutes no problem, it can take a long time to those who have enough time to initialize the system for initialization. Pulse trigger the dogs, when the power through R2, C1, R3 an automatic reset pulse to the counter to ensure that there is an output Vout. Circuit costs low.The biggest drawback of this circuit is that the dogs require a relatively wide pulse.

Leave Comment

characters left:

New Circuits



Popular Circuits

Digital Clock
Two buttons Safety relay
Make a Simplest Temperature Indicator Circuit
Power cipher scheme on the basis of TMS320C6678 DSP
build automatic 6 volt 12 volt 24 volt
metal detector using cs209a
Some interesting Projects
Coilgun Knowledgebase
microcontroller 16f707 capacitive touch button
Inductorless 3-5 Volts Converter
Remote Control Mains Switch
DZW75-48/5050II input circuit
RXTX V6.3 TX Mixer
Zero sequence voltage phase protection circuit 2