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UPS is the abbreviation of Uninterruptible Power Supply, which is what we often call UPS uninterruptible power supply. There are two main types of UPS power supplies commonly found on the market: o...[Details]
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1. Differences between MDK and GNU pseudo instructions When we study assembly code, we will see the following two styles of code: The gnu code starts with: .global _start _start: @Assembly entry ...[Details]
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From June 25 to June 26, 2021, the 5th Jiwei Semiconductor Summit was held in Haicang, Xiamen. With the theme of "Heart and Chip are in Harmony, Changes are Kunpeng", this summit provided efficient c...[Details]
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March 28, 2024, China –
STPOWER’s automotive-grade 600V/650V superjunction MOSFETs from the MDmesh DM9 AG series bring superior efficiency and robustness to on-board charger (OBC) and DC/DC con...[Details]
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A servo is a position servo drive, suitable for control systems that require angles to be constantly changed and maintained. It can be used as a basic output actuator in micro-electromechanical system...[Details]
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During the National Day holiday, the construction sites of key projects in Chaoyang City were very busy. The builders gave up their holiday rest and seized the golden period of construction, working o...[Details]
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Current probes are essential accessories for oscilloscopes to measure current, but the prices of different brands often vary greatly. What kind of current probe is reliable? Here we share the compl...[Details]
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#include
#include absacc.h
//ad control line
#define ad_244 XBYTE ;
sbit ad_stb=P3^3;
sbit ad_start=P1^1;
//lcd control line
sbit lcd_di=P1^7;
...[Details]
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The figure shows a common implementation of a phase frequency detector (PFD), which is basically composed of two D-type flip-flops. One Q output enables a positive current source, and the other Q o...[Details]
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Previously, Honor announced that it would release a new product category on July 15, and it would not be a traditional TV. Now the JD page has exposed the new Honor Smart Screen. According to reports...[Details]
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S7-200 Smart is a new controller developed by Siemens to replace S7-200. Its advantage is that it has a local serial communication interface and an Ethernet interface. It can realize MODBUS communi...[Details]
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The circuit is very simple so I won't draw it. It is made of STC series microcontroller. The display part is two 74hc573 chips connected to P1 port, and then use P3.0 to control the segment selecti...[Details]
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1. Multimeter detection method For fixed capacitors above 0.01μF. The R 1k block of the multimeter can be used to directly test whether the capacitor has a charging process and whether there is an in...[Details]
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On July 7, Professor Mei Shengwei from Tsinghua University visited the Qinghai Micro Energy Network Project of Shandong CITIC Energy United Equipment Co., Ltd. to inspect and guide the work.
...[Details]
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According to foreign media reports, a South Korean research team has developed a thermoelectric material that can be used in wearable devices such as smart clothing and can maintain stable thermal ...[Details]
Analogue and Mixed Signal
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