Sensors automate most of the processes in industry. Most of these sensors, such as those for ammonia gas, temperature, and the like, are resistive devices in which electrical resistance changes—mostly nonlinearly—as the surrounding conditions change.…
原文地址http://www.starlino.com/imu_guide.html Introduction There’s now a FRENCH translation of this article in PDF. Thanks to Daniel Le Guern! This guide is intended to everyone interested in inertial MEMS (Micro-Electro-Mechanical Systems) sensors, in…
Few microcontrollers include a DAC. Although you can easily find an inexpensive DAC to control from your microcontroller, you can use unused peripherals instead of adding parts. Fortunately, you can convert a microcontroller's ADC channel along with…
http://sourceforge.net/projects/openprogrammer/?source=navbar Open Programmer http://openprog.altervista.org/OP_eng.html#Quick Open Programmer v0.8.x Quick facts Completely free and Open Source (including firmware) Programs PIC10-12-16-18-24, dsPIC30…
Voltage Translation for Analog to Digital Interface 孕龙逻辑分析仪 ZeroPlus Logic Analyzer How to modify analog output range of Arduino Due In today's microcontroller market, most of the Analog to Digital converters are only able to accept voltages from the…
Figure 3-7 shows a block diagram of a DSP system, as the sampling theorem dictates it should be. Before encountering the analog-to-digital converter, the input signal is processed with an electronic low-pass filter to remove all frequencies above the…
Driving proportional valves from microcontroller I am looking to drive a current regulated proportional (solenoid) valve that needs up to 85mA @ 24V from a microcontroller. So far I found this circuit that looks pretty straightforward: What are other…
AN2820 Driving bipolar stepper motors using a medium-density STM32F103xx microcontroller Introduction This application note describes how to achieve compact size, high speed and low cost with less resources when driving bipolar stepper motors using t…
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011794 In many applications, a DC/DC Converter is used to produce a regulated voltage or current, derived from an unregulated power supply, or from a battery. Ex…
http://www.planetanalog.com/author.asp?section_id=3041&doc_id=563055 Jonathan Harris, Product Applications Engineer, Analog Devices, 6/2/2014 As I thought about where to go with the next blog, I looked over the comments and questions from my previous…
Batteries are the typical power sources for portable-system applications, and it is not unusual these days to find microcontroller-based portable systems. A variety of microcontrollers operates at low power-supply voltages, such as 1.8V. Thus you can…
Low-cost, 8-bit, single-chip microcontrollers are stingy when it comes to on-chip PWM (pulse-width-modulation) resources. The use of a PWM resource often forces a designer to sacrifice a capture/compare or timer channel because the PWM channel shares…
Many electronic devices require user input for setting the application properties. Typical input devices include pushbuttons, potentiometers, and touchscreens. To minimize overall project cost, you may have to select low-range microcontrollers, FPGAs…
There are commonly three types of memories in a PIC Microcontroller, Flash Program Memory, Data Memory (RAM) and EEPROM Data Memory. We write Programs in the Flash Program Memory of a microcontroller. Flash memory makes it possible to program a micro…
Source Address: http://masteringelectronicsdesign.com/the-non-inverting-amplifier-output-resistance/ It is customary to consider the output resistance of the non-inverting amplifier as being zero, but why is that? An Op Amp’s own output resistance is…
前面有做过ADC性能测试,测试方式是先使用ADC采集一个单频信号,然后利用matlab进行性能分析. 下面把matlab分析的代码记录下来: %The following program code plots the FFT spectrum of a desired test tone. Test tone based on coherent sampling criteria, and %computes SNR, SINAD, THD and SFDR. %This program is…
