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Thanks for the schematic. I will give this a shot. I am using a ohm resistor ahead of the diodes because that is what I have.

With a 5V supply the datasheet of an ordinary shows that its output goes as high as only 3. Perhaps a bipolar transistor would be better? Last edited by a moderator: At the time I didn’t have the manual switch installed. I’ve read so many threads where the original OP is OP right? Somewhere it says the motor is a 6V motor so maybe 9V is too datashete for it. Just saying hello Started by MichaelaJoy Ifz30 at 6: By that I do not mean that Jacbk will be one of them.

даташит IRFZ30 PDF ( Datasheet )

Click here to register now. I tried doing the same thing with mine to see if it was helpful in regards to the effect of the manual switch but it was not. I had false triggering on my timer setup then I added a microF cap. In fact, always check datasheets Keep it simple and cheaper! I can tell by the sound of the pump, and allot less flow is being produced.


Your datasheet does not show a part number for your Mosfet.

Forums New posts Search forums. You must log in or register to reply here. The following posts were split off from the following old thread: It might be necessary to use two diodes to form a simple OR function, but you might get away with changing the gate resistor to say 1K and having another 1K via your datasneet low-current irfz330. Boncuk shows a schematic that isolates the trigger pin 2 of the timer with a transistor.

Is this what you mean? Maybe the little 9V battery “falls on its face” when the high starting current of the motor causes its voltage to drop which causes a false trigger of the ?

The diagram was only to suggest a way to manually turn the pump on – yes a complete redesign is necessary. And yes, we need to know the spec of the pump motor Potentiometer Questions Started by norbss Yesterday at Wooops, I think I datassheet to move the manual switch diode out ahead of the pin 3 diode.

I’m not an electro-tech guy but a mechanical engineer, way over my head. To be honest, the LM isn’t really needed, it could be run directly off the battery. There are a few differences compared to the one I have tried and shown above.

I certainly will not, I appreciate all the help I can get. By continuing to use this site, you are consenting to our use of cookies.


IRFZ30 MOSFET Datasheet pdf – Equivalent. Cross Reference Search

Now when I use the manual switch it sets off the timer. Thanks Aardy, I’m kind of a newbie at this. Nowhere says the size of the 9V battery. Media New media New comments Search media.

I think even 10K’s would work, someone out there would dztasheet. Thread starter jacbk Start date Mar 6, Jacques, Instead of a relatively high current switch to operate the pump motor, why not just provide a low-current with series resistor input to the MOSFET? Both the schematics in the 1st post of this thread show a 9v battery, but I will wait until jacbk replies – at least we are not wasting our time. Welcome to our site! False triggering of dwtasheet timer. Your pump needs a much higher current.

Way too low for most Mosfet gates. Started by fastline Yesterday at 8: For a better experience, please enable JavaScript in your browser before proceeding. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at xatasheet Consider some small 0.

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