Four op amp circuit, 14-pin dual in-line package filter circuit is as follows: The active bandpass filter circuit is as follows: Many spectrum analyzers of audio devices use this circuit as a bandpass...
The board is very well made, the original price is 330, the screen is 50, and the emulator is 200. For details, please see the original Taobao [url=http://item.taobao.com/item.htm?spm=a230r.1.10.39.4l...
[color=#000000]It has been five years since I registered eeworld in 2008. During this time, I downloaded a lot of things from the forum. However, due to personal reasons, I learned very little knowled...
After TOP Switch-Ⅱ, Power Integrations launched TOP412/414 three-terminal DC/DC PWM switch in April 1999. TOP412/414 adopts SMD-8 (G08A) package, of which pin 4 is control pin, pin 5 is MOSFET drain p...
I've been addicted to fishing recently. My skills aren't that great, but I'm addicted. I bought a new lure set for over 300 RMB. I'm going to show you my catch tonight! Haha, fishing requires patience...
[align=left][color=rgb(25, 25, 25)][font="]Corresponding to MCU, ROMan">WiFi or USB HUB generally requires an external clock signal, and an external crystal oscillator is required. Customers often ask...
On August 23rd, Geely's subsidiary, Jiyao Tongxing, announced it has the industry's largest advanced production capacity for tandao
batteries
, with eight production bases across China. Jiy...[Details]
1. Equipment Overview
Shell-and-tube heat exchangers are a common heat exchange device used in chemical evaporation and heating equipment. Currently, the tubesheets of shell-and-tube heat exch...[Details]
When you are happily watching NBA or football, your wife asks you to turn off the lights in the bedroom. Would you be depressed? Of course, unless you are not afraid of your wife.
Now you are ...[Details]
The jammer is a signal blocker, mainly composed of a chip and a radio transmitter. When the car owner presses the remote control lock button, the jammer interferes with the electronic lock receivin...[Details]
As time goes by, people are increasingly concerned about their own and their families' health. However, existing monitoring devices for individual vital signs have struggled to gain market share du...[Details]
Robotics
has become
LiDAR
's "second growth curve."
While LiDAR was still battling with its "pure vision" rivals in the automotive field, another field ignited the demand f...[Details]
In the summer of 2025, BlueOval SK, a joint venture between Ford and SK On, officially started production at its first battery factory in Kentucky.
According to the original plan, this w...[Details]
On August 21st, Zhiyuan Robotics revealed at its first partner conference that it expects shipments to reach thousands of units this year and tens of thousands next year. The company hopes to reach...[Details]
The all-new MG4 was recently officially announced on the Ministry of Industry and Information Technology's (MIIT) new vehicle announcement. The all-new MG4's semi-solid-state battery version addres...[Details]
Since its invention in the mid-1940s, the microwave oven has evolved from a humble beginning to commercial use, entering homes in the 1960s and rapidly gaining popularity. Its basic functionality a...[Details]
In June 2014, the Ministry of Industry and Information Technology issued 4G FD-LTE licenses to China Unicom and China Telecom. Together with the 4G TD-LTE licenses issued to China Mobile, China Uni...[Details]
The practice of warming up a car originated with gasoline-powered vehicles. Warming up the engine allows it to enter a better working state and ensures good lubrication. This has become a habit for...[Details]
According to Nikkei, a survey found that global electric vehicle battery supply is expected to reach more than three times the required quantity due to
cooling
demand for electric vehicles,...[Details]
On August 20, Geely announced its focus on "One Cockpit". Through a unified AI OS architecture, a unified AI Agent, and a unified user ID, it will achieve an All-in-One AI cockpit, create the first...[Details]
On August 21st, BYD announced the launch of its next-generation "Little White Pile" product, the "Lingchong"
charging
pile
, which is now available for general sale. This charging pile feat...[Details]