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Thanks for your reply.
Basically I have a sense resistor (0.156ohm) at an inverter output. I am using two probes to acquire voltage level before and after the sense resistor so that I can deduct one from another to get the voltage drop across the sense resistor. The objective is to find...
Hi Everybody,
I am trying to capture waveform data from TDS 3032 oscilloscope through RS232 port. All samples have 1 decimal place data only (i.e. 20.3V) whereas I need something like 20.2985V. Is there any way to get 4 decimal places from oscilloscope?
I really appreciate any help.
Tahsina
Hi,
I am trying to generate 2 complementary sinusoidal PWM signals using msp430g2553. I want to use those as unipolar SPWM to drive a full-bridge.
Spec:
Reference Signal = 50 Hz
Triangular Signal = 2.5 kHz
pwm period = 0.4ms or 400 us
dead time between 2 signals = 1 us (this is why I am using...
Hi All,
I am trying to generate 2 SPWM signals out of MSP430 pin 1.2 and 1.6 like the following figure:
I am trying to use same port (port 1) for generating the signals with the following code which is not working. Please suggest how to fix to code to get my desired output.
#include...
Hi All,
I have a modulating sine wave signal of 50Hz and triangular wave carrier signal of 2.5kHz, now I want to generate four spwm gating signals for four IGBTs of the H bridge inverter from my MSP430g2553. I could generate two signals using two Timers of A (A0 and A1) but I am being unable to...
According to MSP430 datasheet it should give 2.7V at output pin. So the current through opto-LED would be 2.7V/90ohm = 30mA (theoretically). But I measured MSP430 pin output as 1.8V. So the current for LED becomes 1.8V/90ohm = 20mA, which is more than required (10mA). But this is not working.
I...
Thanks a lot! I showed it the wrong way in the drawing before but while hooking it up I did it correctly. Actually I changed my dc-dc converter to (NME0515SC ) which is not giving me 15 v, I am thinking this is because the datasheet has an inductor order part and maybe I am not loading it in...
I am trying to test IGBT switching using the following circuit but the IGBT smoked out. I am using MSP430 with g2553 chip, NMK0505SAC dc-dc converter, FOD3184 optocoupler and IRG4BC20UD. Please help me if you find anything wrong with my circuit connection.
I am looking for a schematic that shows micro-controller (MSP430-g2553) connection with IGBT (IRG4BC20UD) through the optocoupler (FOD3184). Can anyone help me please?
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