[font=微软雅黑][size=3]The ultra-high voltage BCM is a high-efficiency fixed ratio converter with K=1/16 that can achieve 400 - 700V input and generate an unregulated SELV DC output. The first batch of pr...
9261 boots from dataflash and copies the program to SDRAM for running. Without mapping, if an interrupt comes, how does the program jump? Does it jump to the SRAM entry, SDRAM entry, or 0X0 entry? If ...
As the title says, during the application process, because the power consumption of wifi is too high, I want to turn off wifi when not in use. Then turn it on when needed. The problem now is that if t...
[i=s] This post was last edited by lx2233456 on 2015-12-30 14:32 [/i] [size=12px][color=#ff0000] The project has been packaged and the QQ number has been deleted. Thank you for the help of the forum f...
On August 23 , under the guidance of the Electronic Product Management Department of the Ministry of Information Industry, the High-tech and Industrialization Department of the Ministry of Science and...
[table=98%] [tr][td][align=left] Dear experts, I would like to ask how to adjust the duty cycle of 3842! I saw someone say this: the oscillator controls the turn-on moment of the MOS, and the turn-off...
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]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[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]
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]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[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]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
Power technology
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