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HI, I need to program Atmega32u4 on a breadboard. Since Atmega32u4 chip pins are so small and looks lke they can't be programmed on a breadboard, I would like to know if from ebay could
Hello! Looking for a Hameg HM5014 spectrum analyzer service manual containing calibration proceedure. Finding manuals on the net but none with calibration information. Any help would be appreciated! Rod
Hello, I purchased PIC 2 and a universal development board. The MPlab I use is able to detect the kit 2 however it keeps showing me error message that the microcontroller is not installed properly. Help me out please, this is my very first time. The power supply I used to power the development board on which the microcontroller lie is 4.5V and the
Hi all, First of all, HFSS is quite challenging. :roll: I am new to HFSS and have a question. There is the option "Mesh Operations" in HFSS. Where I can refine or define my own mesh for the problem. How and when do I have to apply the operation in order to take effect ? Before or after the "Analysis" process ? For example, I have a probl
That's pretty good. I'm assuming that the oscillator power is 15-20 dBm? If so, then the performance is approaching the theoretical limit of -174dBm for a room temperature device. Since the oscillator is ovenized, this performance is also amazing. If your oscillator is less than 10dBm output, you might want to check your calibration.
Ive read a closed topic called Want to make a FPGA board. It was an interesting discussion. I am also interested to develop a low-cost FPGA development board but some of its features are distinct from the one purposed on the closed topic. Why I am interested to build a low-cost de
Hi, How can it be that you calibrated it and it shows wrong values? How did you do the calibration? If you need more help you should provide all necessary infirmation. * your circuit schematic (not the darasheet's schematic) * your PCB layout * the IC setup * your analog input signals (voltage/current, frequency, waveform, how reliable are they)
Hi, multiply with what value? A random calibration value? Klaus
I am reading the hall sensor values directly using Adc, but even when the motor is not moving there is small difference of adc count between hall sensors and fluctuating When dealing with these chip sensors it is always useful to have a calibration procedure in order to set up the same baseline for all of them, and course, store it i
Hi, As a new learner in digital control in power electronics, I would like to ask for reference materials such as pdf files or code example. Thanks.
TPS40170 is 4.5 V to 60 V Synchronous PWM Buck Controller with 100-600kHzz switching frequency and 0,6V FB. 140839 Simply put, feedback is voltage divider or in variable version potentiometer. I need to control the output voltage from the processor and hold a simple method how? Maybe over voltage, M
Hi, I am using following, Crimping Tool: Pro's kit 608-384 Crimp Shells: 1) Molex Pico-Lock Crimp Terminal (28AWG to 24AWG) 2) Molex MicroBlade (30AWG to 24AWG) Wire Size: 1) 26 AWG 2) 28 AWG I tried to crimp all the possible combinations but each time the insulation crimp got more flattened so that crimp terminal could not get into
I do not like the idea of using tables to describe the sensor response, as this makes the calibration process less "programmable". When using a formula, it is possible to make adjustments just changing few parameters of the (e.g polynomial) function.
Hi, i am working on a circuit to build transformer less power supply to convert universal input to constant 240 V DC. Below i attached a design in proteus. It worked in the simulation, but not sure about the real time. Does the circuit seems reasonable and can I proceed with the hardware part? Thank you 140614
A lot probably depends on the control scheme. If the treadmill has an encoder type speed feedback then the 180V motor ought to make speed with less voltage (and within range). But if it uses back EMF and current for "synthetic" speed feedback, that calibration will be off by about 1/3 (hang on, George) and full speed may try to impose full con
hi, I am new to ARM processors. I am using Discovery F4 kit. I need the explanation if this code. #if defined(TM_DELAY_TIM) void TM_DELAY_INT_InitTIM(void); #endif #if defined(TM_DELAY_TIM) void TM_DELAY_TIM_IRQ_HANDLER(void) { // this bracket is confusing me i can't find itS closing end i the compil
Hey, I have stumbled upon the VK3AJG while searching for some simple radio stuff to build. I am a very beginner in this field, so I'd like to ask for your opinion about this project. This transmitter is using only transistors (BC549C, BC547C, BC557B, 2N2219), no ICs. The project is described here:
Hello! I am trying to interface the ADC and DAC of the spartan - 3A starter kit. I have written a code but when I implemented it, result is not correct. I have directed the first 8 MSBs to on board LEDs to see the output. All the LEDs are always on occasionally they turn on and off when the start_AD_CONV switch is trigger manually. I am not s
Hello! I am trying to interface the ADC and DAC of the spartan - 3A starter kit. I have written a code but when I implemented it, result is not correct. I have directed the first 8 MSBs on an LED to see the output. All the LEDs are always on, however the first LED (MSB) turns on and off when the switch Start_AD_CONV. I am not sure if my cloc
A dedicated IC would have been better, because of the built-in calibration. But looks like your solution is the only choice. Btw, it's a 48V battery bank (64V maximum).Okay. That means an added zener is needed to keep the opamp supply voltage within its limits, as shown