1. The sampling method using optocoupler isolation is as shown belowBoth GP9303 and GP8101 are powered by 12V, and the PWM frequency of GP9303 is 10KHz. PC817 optocoupler is used for isolation in the ...
The first question is, which series of microcontrollers should beginners learn? 51, AVR, 430, ARM (including embedded operating system), FPGA, etc. There are so many microcontroller systems at present...
[size=14px]Overview of FPC Proofing: [/size] [size=14px]FPC proofing is the production of product samples. Therefore, FPC proofing is the production of samples entrusted to manufacturers to confirm wh...
The clock sources of MSP430F169 are three: high-speed crystal oscillator XT2, low-speed crystal oscillator XT1, and digitally controlled oscillator DCO. The clock signals generated by each oscillator ...
Now I want to implement a control that can both write text and insert pictures, but RichEdit control cannot be used in EVC. So I want to ask what is the control similar to richedit in EVC? The main pu...
[p=16, null, left][color=rgb(0, 0, 0)][font=Arial, Helvetica, sans-serif, 宋体][size=12px]Today, with the rising labor costs, processing plants are afraid to receive orders for post-welding. Although SM...
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
Analog electronics
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