It is the circled area in the figure. At this time, no current flows into the secondary side, and the diode is reverse biased and cut off. Then its terminal voltage should be the secondary side voltag...
Thermistor K value in lithium battery management circuit. If you use a different thermistor, you can choose to calculate and change the temperature coefficient using the attached excel document.
Recal...
There is always a resource you can use. No more nonsense, here are the resources! [font=微软雅黑][size=4][url=https://download.eeworld.com.cn/source/581764]AD skills: 3D Model lib.rar[/url] [url=https://d...
[i=s]This post was last edited by wangerxian on 2022-6-6 14:08[/i]A few days ago, I saw a review posted on the forum, which was a Qinheng CH224EVT evaluation board [ https://en.eeworld.com/bbs/elecpla...
I took some time off over the weekend to disassemble a Bluetooth headset charging case.No logo on the frontThe reverse side has logo, model, capacity, etc.The charging port is a Type-C interface.After...
[i=s]This post was last edited by qwqwqw2088 on 2021-11-4 15:47[/i]Have you ever wanted to have a pet robot dog? Now there is one in front of you.It is only the size of a palm.You can run, jump, and e...
IO port control Direction register TRISA~TRISAE For example, TRISB=0x00; // 1 is input, 0 is output, so all portB ports are set to output Data register PORTA~PORTE For exa...[Details]
Apple chip designer Tim Millet recently said in an interview with foreign technology media TechCrunch that in the future, Macs will upgrade their chips every year, and at least the release cycle will...[Details]
This article describes the construction of a bass-reinforced speaker box system that can be used to reproduce music with a heavy bass effect that can be adjusted with a potentiometer.
Mo...[Details]
Q: How is the context saved when ARM enters IRQ interrupt from SVC mode? Answer: When saving the scene, when in svc mode, the cpsr register is written to the spsr_irq register in irq mode, not the sp...[Details]
Apple has significantly cut iPad production to allocate more components for the iPhone 13, multiple sources have revealed, indicating that the global chip supply crunch has hit Apple harder than prev...[Details]
When repairing lines, if the input level of the measuring amplifier is lower than the level loss value of the specified cable length, you can use a pointer type resistor to measure the resistance of ...[Details]
Here we take W77E58 as an example to introduce winbond dual serial port microcontroller:
1. Basic characteristics
Compatible with the 8051 microcontroller pin and instruction str...[Details]
China Energy Storage Network News:
The concept of power system reliability
The general concept of power system reliability includes two meanings: one is adequacy, which refers to the...[Details]
Black glass changes the spectrum of light that hits the ambient light sensor, which is a design challenge for ambient light sensors. In particular, black glass enhances the infrared portion of the ...[Details]
From a professional point of view,
the most objective and reliable way
to see
whether a UPS
is good or not is to use test indicators to measure
the main indicators of
...[Details]
I've been studying 44B0X recently. When I was looking at its serial port driver, I found a Uart_Printf() function. I looked it up and found it incomprehensible. So I looked up its information and for...[Details]
In February 2019, State Grid Corporation of China issued the "2019-2020 Action Plan for Promoting the Development of Integrated Energy Service Business", proposing to coordinate the layout of four ...[Details]
Our view on this issue is quite clear: fuel vehicles cannot achieve intelligence. There have been a lot of messages in the background recently. A common question is that although most people admit ...[Details]
O Introduction Since the advent of MOSFET and IGBT, voltage-controlled power electronic devices, especially IGBT, are experiencing a rapid development process. The voltage of IGBT single module de...[Details]
CAN bus (Controller Area Network) is a communication protocol used in the field of automobile and industrial automation. It has the characteristics of high reliability, real-time and flexibility. H...[Details]
Analog electronics
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