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Hi All,
An update.. We have decided to use a different approach. Instead of using power measurment devices with a clamp(risk of inaccurate measurment is to high) or field point modules(too slow anyway) we have decided to use a combination of high voltage instrumentation amplifiers and true RMS...
Hi Fvm and walkura
I realise the current will be of sine form as the motor windings act as a kind of filter. I fully understand how to measure the current, im using LEM modules. Its the calculation of power that im not 100% sure of. I can filter the voltage over the phases(removing the high...
Hi All,
Im working on project for my final bachelor thesis that involves an EV test bench setup.
DC battery bank(180V)>>Motor-controller>>3-phase delta connected motor.
I need to measure the power at different stages. Does anyone have an idea for measuring the power coming out of the...
Hi Brian,
Are you basically doing the following as a result of what you mentioned earlier:
packedword = (highbyte << x) | lowbyte ;;where x=8
How does your method work, could you please explain? Thanks for the help BTW :-)
---------- Post added at 15:58 ---------- Previous post was at 15:54...
Hi all,
Im using MikroC. I have a screen coordinate coming in from a serial link. The coordinate is 16 bits in total, but arrives as two 8 chars.
example:
0x03,0x0E ==>is coordinate 782.
How can i convert this into a single integer so that i may carry out position analysis?
Thanks for the...
Found the problem. It was a faulty MAX232 level converter. When the MAX232 was connected to the relay board then the signal output became poor, this was not the case when connected to the PC. NOw it works fine.
Thanks anyway
Hi,
I have a HMI which sends two 8-bit chars which represent a 16-bit touch screen coordinate.
So in an example, the HMI sends:
0X03 then 0X0E (both seperate) which represent the coordinate 030E (782).
How can i combine the two into a single variable to represent the number 782? I was thinking...
Im trying to control my Velleman K8056 Relay Board using a microcontroller. The board works fine when connected to the PC using the Velleman program.
Im using a MAX232 level converter between the MCU and PC/Relay Board
Im using a MikroC USART library for my PIC18F4550. The code is below. Ive...
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