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For PLC users, when writing user programs or selecting equipment, they must be clear about the three stages described below, that is, the principles of the user program execution process.
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Many applications require the isolation of hazardous voltages to comply with international safety standards. To ensure the safety of equipment and operators, these standards often require isolation co...[Details]
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The fixed dual output connection circuit is as follows: 78×× series for positive voltage output, 79×× series for negative voltage output. Among them, ×× represents the value of fixed voltage output. ...[Details]
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This article takes STM8S103F3P6 programming as an example to introduce the capture cycle and duty cycle of STM8S103F3P6 timer 1 Computer platform: Windows 7 64-bit flagship Compiler software: IAR H...[Details]
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Background and development purpose With the development of the electronics industry, electronic products have begun to show a "four-dimensional" development trend, namely miniaturization, integratio...[Details]
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Ceramic insulated power wirewound resistors, often called cement resistors, are widely used in computers, televisions, instruments, meters, and audio. Cement resistors are wound with resistance w...[Details]
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When the resistor is soldered on the circuit board, the reading is obviously inaccurate when the multimeter is used to directly measure its resistance value, because the parallel effect of the resist...[Details]
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The power grid often interferes with or damages computers and precision instruments, mainly in the following aspects:
1. Power surges: refers to the output voltage effective value higher than ...[Details]
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GET is usually used to include source files that define constants. For example: GET 2440addr.inc AREA is used to define a segment, ENTRY is used to specify the entry point of the program, and END is ...[Details]
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With the rapid development of computer application technology, mobile storage devices have been widely used. Among them, CF (Compact Flash) card was born in 1994. It is the earliest flash memory card...[Details]
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During this period of time, major mobile phone manufacturers have successively launched their new generation of representative top-level products. After Xiaomi launched the Xiaomi 12, Xiaomi 1...[Details]
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Regarding S7-1200PLC programming with parameters and programming without parameters, mainly FC and FB, this programming method can mainly realize repeated calls and transplantation between programs...[Details]
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Chen Mingji, this person needs to be known, because he wrote the small rtos, which was written based on the principle of ucos. This small rtos can run on the 51 microcontroller, but it is limited by t...[Details]
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As the Internet of Things becomes a hot topic in the market, the intelligence level of all electronic products is gradually improving, thanks to the large-scale introduction of embedded sensing techn...[Details]
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Currently, most automobiles use LEDs and CCFLs as backlights, and both require special power supplies. This application note discusses power supply solutions for LED and CCFL light sources, w...[Details]
Analog electronics
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