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Firstly, make sure the GU10 LED bulbs are truly dimmable. Most already have a switching current regulator in them which will interfere with the drive signal from your circuit. I think it is unlikely you have sufficient base current in the BUX87 to provide reliable switching. Because most of the base current comes from C7 discharging, you may need
Hi, I have designed a temp controller. The temp from the sensor is measured and amplified. I have an relay in my circuit. The relay is connected with the Analog port, but in different pin. Whenever the relay gets turned on the adc value gets increased. The voltage reference is same at all instance. The chip i have used : Atmega3208.
Hi, A battery voltage varies....and the same magnitude in % your sensor signal will vary, too. --> high error. You want it simple... Sadly you don't give much information about the whole application. Especially: where does the Opamp output signal go to? If to an adc: Then I'd modify the circuit a little bit. I'd use a voltage divider fr
How can I rewrite this code to use less RAM & ROM? adc: 10bit. Speed: 1MSPS. Data input range: 0-5V. CPU: DSPIC30F2010; 16bit. This code is working fine. But consuming 25% of total ROM & 40% RAM. I need suggestion to rewrite this code so that I can save some RAM & ROM. I need at-least 20 samples to get the best result. Signal is both AC & D
So, I transform the coefficient in integer value of max 17 bit (1 bit for sign) Why not simply treat the signal as 18 bit signed? If your original adc signal is 16 bit, you'll use 16 rather than 18 bit signed. Similarly, the coefficient resolution will be demanded by the filter transfer function accuracy, not the multiplier width. A
I am working with gnss sdr software for processing rf signal captured in file. In gnss sdr software configuration the data source mentions adc sampling rate and type as i and q samples. Nothing is mentioned about IF frequency. Does that mean the intermediate frequency is always zero for I and Q components?
How can I measure the average points of the peak if these signals and one avg of max&min value of sine wave. Note that I'm new with dsPIC ics but have been working with PIC and atmel ICs for a long time. Yes, I can do it in my older method but those are time consuming for this product. That is why I'm asking for suggestion from experienced friends
I can't see why noise should be a problem in the design although a full schematic of the sensing circuits would be useful. An LPF should suffice, other than that I think the next best solution would be to S&H when the pulse is present before measuring. I suspect the issue is the high impedance at the potential divider but dropping the resistors va
Hi, As so often, asking for the "best" is almost useless. It my be the * low cost * most space saving * best availability * least phase shift * least pass band ripple * highest stopband attenuation * closest to nyquist frequency * best waveform regeneration * lowest frequency drift * lowest harmonic distortion * lowest noise * low current consump
Hi I am using ADS62p49 14 bit adc which supports LVCMOS and LVDS output. I have a low sampling requirement of 30MSPS hence I am using LVCMOS type output in 2's complement form. When I give 10dB sine wave input to the adc, I get a sine wave digital output with dc bias. Similarly when I am giving no input, I should get lower bits triggered rest all
Hi I am using FMC150 Daughter card which has 14 bit TI adc which can be configured for both LVDS and LVCMOS type output to carrier card. When I am setting the adc in LVCMOS mode with 2's complement digital output, I am having the output bits raised by 2^13. So my output is always in unsigned mode with DC bias of 2^13. If I am giving no input signal
#include #define _XTAL_FREQ 8000000 #include "lcd.h" // CONFIG1H #pragma config OSC = HS // Oscillator Selection bits (HS oscillator) #pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enable bit (Fail-Safe Clock Monitor disabled) #pragma config IESO = OFF // Internal/External Oscillator Switchove
Hi. I am using 12bit adc, Texas Instruments ADS5295. Table 20 on page 75 of the manual shows that ads5295 supports 14x serialization and has to be used with digital processing function (such as averaging and decimation filter). 157067 However, there is only a timing diagram for 10x and 12x serialization in the ma
Hi. I am using 12bit adc, Texas Instruments ADS5295. Table 20 on page 75 of the manual shows that ads5295 supports 14x serialization and has to be used with digital processing function (such as averaging and decimation filter). 157068 However, there is only a timing diagram for 10x and 12x serialization in the man
I have designed two signal conditioning circuits. One is for giving input to adc and other one is for taking output from DAC. Input to adc signal conditioning circuit is 0-5V or 0-12V and getting an output from it in range of 0-3.3V. Similarly, DAC signal conditioning circuit is changing voltage level from 0-3.3V to 0-5V or 0-12V as per the require
The ferrite bead prevents RF from the digital circuitry from getting coupled to the analog side. OP's SAMD21G18 will generate up to 48MHz hash+harmonics on DGND which you do not want on your AGND. A ferrite bead joining two grounds (analog and digital) is common practice and discussed in Analog Devices app notes. Usuall
Hello, On my custom designed PCB, I use a STM32F7 processor. I control a SPST switch with TIM ISR. I establish a serial interface with SPI2 for a DAC control. Also I have an external adc which is controlled with SPI4 DMA mode. Now I call the SPST and DAC control commands with TIM ISR. For the adc, I call the SPI DMA function in main.c file. The
Hi I need help to understand speed of SPI Ic MCP3004 Features: 10-bit resolution Four single-ended channels SPI interface ?1 LSB DNL ?1 LSB inl 200 ksps sample rate at 5V I do not understand meaning of 200 ksps sample rate at 5V. does it means mcp3004 can send one bit to slave at speed of 200 ksps ? Each bit take minimum 200 ksbs for
need help with metal detector circuit if i use arduino/PIC micro controller adc channel. 156811 if i want to switch the coil inductor at high current using mosfet for greater depth. because direct connection of switching signal from arduino pin is not the correct way for switching at high input current. and to use adc c
Hi, The following XC8 C Code just reads the adc input?then if above a certain value, it then outputs a PWM out on a pin. Do you think this code is OK? it builds fine. The adc had loads of registers and it didnt look like you had to bother setting all of them? It would be good if microchip had like an "LTspice simulator " for their microcon