Shanghai Yinglian Electronic Technology Co., Ltd. was established in 2001 and is a fabless integrated circuit design company. The company is committed to the research, development, design and sales of high-performance linear and mixed-signal integrated circuits, and its products are used in various electronic devices. The products of Shanghai Yinglian Electronic Technology Co., Ltd. bridge the analog world and the digital world by detecting, measuring, amplifying, converting power and providing circuit protection.
Battery Capacity Meter
The electromagnetic capacity meter circuit is specially used to estimate the capacity of cadmium nickel batteries and judge their charging effect.
The ...[Details]
The forward and reverse control circuit of the motor is complicated because of the large number of manufacturing processes. After the new installation or renovation, it is possible to misconn...[Details]
0 Introduction
Usually,
a bandpass signal
can be represented by the corresponding baseband signal. For example, if Sm is used to represent a real bandpass signal, the bandpass signal can ...[Details]
Improvement of Digital Multimeter Capacitor
Socket Digital multimeter can measure 1pF~20μF capacitors. However, it is impossible to measure capacitors because the pins of various c...[Details]
Many engineers are not clear about the settings of spectrum analyzer parameters and their impact on test results, which leads to incorrect measurement results. This article will discuss
how to use a...[Details]
If one or more segments of the seven-segment LED digital screen do not light up, and the test confirms that the LED is damaged, then the following method can be used to repair it:
We kn...[Details]
It is a common phenomenon that the resistance range of the multimeter is burned out due to the wrong range selection.
Take the R×1 range of the U-10 multimeter as an example, and its si...[Details]
The voltage regulator is connected in series with a transformer to increase the output voltage
The voltage regulation range of ordinary AC contact voltage regulators is between...[Details]
Application of PLC in Catalytic Main Air Unit
This paper introduces the application of GE90-30PLC in the automatic control device of the catalytic main air unit. The system adop...[Details]
"The integration of three networks has brought historic opportunities to my country's cable network, but also severe challenges." Zhang Haitao, deputy director of the State Administration of R...[Details]
1 Testing of controls such as text boxes and buttons
1.1.1 Testing of text boxes
How to test text boxes
a. Enter normal letters or numbers.
b. Enter the name of an existing file.
...[Details]
Ultra-high resistance can be indirectly measured using the conductivity method. The following introduces a practical circuit for measuring conductivity.
The digital conductivity met...[Details]
At present, the measurement methods of inner diameter in China are mainly contact measurement. However, due to the wear of measuring tools and human factors, the measurement error of contact ...[Details]
Temperature measurement and temperature measuring instruments
1. Basic concepts of temperature measurement
Temperature is a physical quantity that characterizes the degree ...[Details]
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