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In the previous article, the PWM drive method of the brushed DC motor was introduced using constant current drive as an example. This article will introduce the PWM drive of the brushed DC motor in...[Details]
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Overall design
The intelligent remote control music baby stroller consists of several parts, including the baby stroller intelligent control module, detection system, remote control module,...[Details]
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According to the latest news from investment promotion, OFILM's optical and optoelectronic industrial base project is expected to be officially put into production before May 1. On June 3, 2020, the...[Details]
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Digital blogger @数码闲聊站 said in response to netizens' questions that the four-curved waterfall screen concept phone previously announced by Xiaomi is only a pre-research project, and the specifi...[Details]
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With the development of science and technology and the emphasis on efficiency, the traditional anti-theft method of retail stores using human surveillance of shopping malls is no longer suitable. I...[Details]
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The magnetic flap level gauge is a liquid level measuring instrument that works on the principle of magnetic coupling and buoyancy. It can be said that the key component for the magnetic flap level ...[Details]
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The largest electric vehicle fire incident in the United States that caused a lot of controversy this year seems to have subsided after LG compensated GM $1.9 billion (about RMB 12.1 billion), but el...[Details]
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1. Product Introduction
ETCR8000 leakage current monitoring recorder is designed and manufactured for on-site online testing, monitoring, and recording of AC leakage current and current. It con...[Details]
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key.h #ifndef __KEY_H__ #define __KEY_H__ #include "stm32f10x.h" #ifdef KEY_GLOBALS #define KEY_EXT #else #define KEY_EXT extern #endif //IO definition #define down() GPIO_ReadI...[Details]
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On the evening of February 25, Huafeng Testing & Control released its 2021 performance announcement. In 2021, the company achieved operating income of 878,269,295.84 yuan, a year-on-year increase of ...[Details]
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4. Amplifier Noise Figure Calculation
4.1 Inverting Input Op Amp Noise Figure Calculation
assumed:
The total output noise is calculated as follows:
4.2 Non-Inverting Inpu...[Details]
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Standby mode When SM2..0 is 110 and an external crystal oscillator or ceramic resonator is selected as the clock source, the SLEEP instruction puts the MCU into Standby mode. The only difference bet...[Details]
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introduction Today's processors, graphics and storage systems all use multiphase power solutions. These multiphase solutions can provide the response and regulation performance of a very high s...[Details]
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On the morning of December 30th, Apple recently released several video advertisements to promote their slow-motion selfie video function. The core promotional point of these video ads is "Slo...[Details]
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An image sensor is a device that converts image data into a series of electronic signals using the principle of photoelectric conversion. The contact image sensor CIS is a new type of image sensor ...[Details]