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OP is commonly used around here in the forum. Click here to register now. Forums New posts Search forums. Just saying hello Started by MichaelaJoy Yesterday at 6: Potentiometer Questions Started by norbss Yesterday at Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects dtaasheet gadgets. The diagram was only to suggest a way to manually turn the datasheft on – yes a complete redesign is necessary.

Keep it simple and cheaper!

Articles Top Articles Search resources. You must log in or register to reply here. Your schematic does not show a part number for your Mosfet. Started by fastline Yesterday at 8: This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. At the time I didn’t have the manual switch installed. Welcome to our site!

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? To participate you need to register. Thanks Aardy, I’m kind of a newbie at this. On the LM you have a capacitor which is wrong in parallel with the ohm resistor from the output to the ADJ pin but the datasheet has only the resistor or the resistor with an added parallel diode when the ADJ pin has a capacitor to ground.


Last edited by a moderator: 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 ? datqsheet

Irfz30 datasheet pdf

With a 5V supply the datasheet of an ordinary shows that its output goes as high as only 3. Media New media New comments Search media. The following posts datashet split off from the following old thread: Perhaps a bipolar transistor would be better? I had false triggering on my timer setup then I added a microF cap.

False triggering of a timer. And yes, we need to know the spec of the pump motor To be honest, the LM isn’t really needed, it could be run directly off the battery.

I am using a ohm resistor ahead of the diodes because that is what I have. Now when I use the manual switch it sets off the timer. Thanks for the schematic.

IRFZ30 datasheet & applicatoin notes – Datasheet Archive

datawheet For a better experience, please enable JavaScript in your browser before proceeding. Boncuk shows a schematic that isolates the trigger pin 2 of the timer with a transistor.


In fact, always check datasheets 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. 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 now low-current switch.

I’m not an electro-tech guy but a mechanical engineer, way over my head. I can tell by the sound of the pump, and allot less flow is being produced. By continuing to use this site, you are consenting to our use of cookies.

False triggering of a 555 timer

Nowhere says the size of the 9V battery. Your pump needs a much higher current.

Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Is this what you mean? 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.

By that I do not mean that Jacbk will be one of them. I certainly will not, I appreciate all the help I can get. Is a little 9V battery able to produce enough power to drive the motor?

I’ve read so many threads where the original OP is Datazheet right?