1. The FR-4 we often choose is not the name of a material. The "FR-4" we often refer to is a code for a flame-resistant material grade. It means that the resin material must be able to extinguish itse...
[i=s]This post was last edited by RCSN on 2018-9-2 21:29[/i] [font=宋体] [/font][font=宋体]This has not been fully ported yet. Interested forum friends can discuss porting together. I sent the latest offi...
I installed Driver Studio 3.1 and set SOFTICE to BOOT, but after restarting XP (SP2), I could not enter the system. The status was: after being prompted to press ESC to configure SOFTICE, the cursor k...
I have been engaged in PCB design for a while, and I have always been troubled by a problem. When I do PCB design, I always see various different grounds, but I don’t understand why so many different ...
Please ask the experts: Environment: MPC8270, tornado 2.2 The address AD22 of the miniPCI device connected to the IDSEL# of the CPU MMU and PCI automatic configuration #define INCLUDE_MMU_BASIC /* #de...
The ACS712 acquisition part is shown in the figure above. When an AC 12V voltage is passed through the primary side of the ACS712 and a resistive load is directly connected to the AC 12V voltage, the ...
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
PCB Design
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