to filter the list of filenames (or choose a file type from the List files of BS Transistor, TMOS FET switching. Motorola. Q1, Q2. MFBK “Typical” parameters which may be provided in Motorola data sheets and/or specifications . I’m considering either a MOSFET like a BS or a BJT like a 2SC Which would be lower noise I may be just overlooking it when I look at the datasheet but I don’t see it. I’m using a signal File Type: jpg, DSCF Hi there, I’m searching for a complementary low power mosfet pair for File Type : jpg I prefer to match Rds(on) and of course Yfs/Rds from the datasheet. #2 is BS and BS which has comparable small capacitance.

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Originally Posted by rcheshire I don’t want to hijack your thread – strictly amateur stuff.

The All Things to All People controller – Page 2 – IceInSpace

Two choices of write frequency with the Teensy 2. Might be power savings as well in light dew. Your posts are an education.

I’m using the Dalls 1 wire temp sensors for the two heater temp channels and the DHT22 for ambient temp and humidity. Hi, If it is only an overload protection As all scopes and setups and weather are different so lots of tweaking for optimal results. This part is available from both Mouser and Digikey I believe.

This can be achieved by either reducing the switching frequency MOSFET power-loss becomes a big issue at high frequenciesor by increasing the rise time of the MOSFET gate using a fast push-pull driver at the output of the microcontroller. I’ve read also about too much heat as well might not be the best.


For efficient code you want to as avoid using any floats single or double which means no decimal places and avoid performing any math which results in a division that has a decimal place. Touch this against any part of the mount earth then there is a short cct to earth. How get measure Datasheeh with a Pic I guess I don’t fully understand this concept.

Originally Posted by dagasheet. I am not really interested in the Beaglbone though. Originally Posted by rcheshire. Changes in ambient air temperature are used to recalibrate pwm values – avoiding high, low switching.

2n datasheet & applicatoin notes – Datasheet Archive

Powered by vBulletin Version 3. There it stays until conditions change. I figure this will permit a wide range of customisation. I still need to test the prox switches, dew controller, and relay drivers. If I have a load of 20 amps then with a.

While these are low on rds there are no small packages for this family. What “noise” are you talking about?

BS170 MOSFET. Datasheet pdf. Equivalent

You talking about actual radio noise being emitted every time the FET switches? Originally Posted by Garbz. Only problem is I’m at max ratings for gate switching voltage.

I was amazed the amount of code required to do floating point calculation fst to integer based calculation. Originally Posted by AndrewJ As per redbeard, i also put my primary dew heater wires behind the corrector, but my insulated dewshield also goes right back over the OTA as far as possible to retain as much dewheater heat as possible in the OTA.


Find all posts by filefype How to measure Current with a Pic. Yeah low on Rds is vital this is why most people use N channel fets Alain PS ; and like that??? Find all posts by wasyoungonce. Freescale have a function called umuldiv that is specifically catered for integer based floating point calculations and just places two integers and a scaling factor.

I was working under the assumption of plastic RCA connectors and recessing the RCA plugs so once they’ve mated there wouldn’t be any metal exposed.

This may cause a lot of heating. The time now is AndrewJ Watch me post! If the load get to high, I would shut the ouput down. Can anyone suggest a circuit to measure current? That is good stuff. Last edited by wasyoungonce; at I am working on a project in which we are using a LMP Find all posts by Garbz. The freetronics smd mosfet runs a little warmer than the IRF I have, although freetronics advertise it as logic level Vgs 4.

Originally Posted by mswhin Should be trivial to change: