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Recent content by pjohn

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    Measuing Shaft rotation

    Hi, Thanks for the link tpetar. But I was wondering if I can employ Gyrosope to do the same thing, it will also help me to understand the Gyro concepts as well. Any help on Gyro to acheive the same objective?
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    Measuing Shaft rotation

    Thanks for the reply guys. I have a very strong magnet that I intened to connect to the shaft. This magnet will house the circuit, so the whole system will be rotating with the shaft. The shaft diameter is about 2 inches. After measureing speed, I intended to log the rotation speed for later...
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    Measuing Shaft rotation

    Hi all, I was wondering whether I can use an accelerometer or gyroscope or both to measure the speed of rotation for a motor shaft. To be honset I have read alot of stuff on the internet but am kind of confused as to what will be the best solution. Basic idea is that If I can mount my circuit...
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    Current Loop Transmitter Suggestions

    Hi, Can you please suggest me various current loop transmitters, please do not suggest XTR115, XTR116 or XTR117. I want to power the external circuitry via the transmitter. Any suggestions will be highly appreciated.
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    230V Protection Circuit

    Hi, I am designing a circuit, in which the signal level rises to the maximum of 24V, but there is a potential that somebody can wire 230VAC to the input supply instead of 24V. I need to design a protection circuit that uses SMD parts to create the protection from 230VAC. The circuit I...
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    PIC and Buck Converter

    Dear All, I have been working on a prototype of Buck converter, I have been using PIC18F25k80 in order to generate Complementary PWM using ECCP, I am only using one of the PWM pin at the moment for switching Logic MOSFET, as in the future I would like to make the Synchronous...
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    I2C Communication between two PIC18 microcontroller

    Thanks very much for your help
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    I2C Communication between two PIC18 microcontroller

    Dear All, I am looking for an example project or tutorial that utilizes C language or Microchip Library to configure two PIC 18 using I2C. Any help or direction will be highly appreciated. Best Regards
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    Buck Conveter Design Issues

    I could not find any thing on wikipedia
  10. P

    Buck Conveter Design Issues

    Hi, I am designing a Buck converter, which has the following requirements. Vin = 12v-14v Vout = 3.3v I load = 160mA I need some guidance and information regarding stability and phase margin. I have different options for choosing the IC, Option 1: ADP2302: 2A, 700KHz NonSynchronous...
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    Low pass filter confusion

    Hi, I am designing this very simple low pass filter, and also with the view to drop the Voltage to 3.3v from 24v. Here are the specs: Cut off frequency: 297 Hz I started initially with the following combination: +24v . . R1 . ................C....Ground . . R2 . ...

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