Wang Quan Technology (Kunshan) Co., Ltd. established a back-end taping factory in Kunshan in April 2001, and at the same time started to build a factory on Huangpujiang Middle Road. In December 2002, the new factory was completed and began full manufacturing. Wang Quan's products are SMT chip resistors, including chip resistors, array resistors, and network resistors. The current monthly production capacity is 9 billion PCS, which are mainly used in desktop notebook computers, computer peripheral products, network communications, mobile phones, etc. In order to adapt to the trend of miniaturization of electronic products and the requirements of high precision, the company actively develops smaller and more precise products. The company actively completes certifications that meet international standards, and has successively completed ISO9000, ISO14000 and other certifications. As a member of the global village, Wang Quan must also fulfill its environmental protection responsibilities. Therefore, in 2004, it completed the lead-free electroplating terminal electrode and mass-produced RoHS-compliant products in July 2005. Wangquan adheres to the chairman's business philosophy. Maintaining integrity is the principle of persistence, giving back is the unchanging concept, surpassing is the eternal goal, maintaining talent is the driving force of progress, research and development is the rock of development, and continuous efforts are made to make progress. The company has a total investment of US$100 million, covers an area of 119,000 square meters, and now has more than 2,800 employees. In the next 2-3 years, it will realize the corporate vision of becoming the first in the market share of chip resistors in East China.
Hi everyone, I'm working on SAMR21 recently. I just received the board yesterday. I followed this post [url]https://bbs.eeworld.com.cn/thread-452891-1-9.html[/url] to familiarize myself with the devel...
I plan to use a piezoelectric chip as the voltage input of a tp4055 to charge a battery. Is that ok? ? ? What does the "constant current/constant voltage operation" mentioned in the tp4055 data sheet ...
[font=宋体][size=12pt][/size][/font] [font=宋体][size=12pt] [/size][/font] [font=宋体][size=12pt] [/size][/font] [font=宋体][size=12pt] BTL amplifier has a higher output power than ordinary amplifiers under t...
When I was looking up the documentation about CAN's self-reception issue, I saw this sentence: [size=5][color=#ff0000]When a self-reception request is generated, if the acceptance filter is set to the...
I would like to ask the experts a question: D1, D2, D3, D4 of PT2272 are connected to P1.0, P1.1, P1.2 and P1.3 of AT89C2051 (high level is valid). When D1 is high level, why is P1.0 unresponsive? But...
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Some time ago, I attended the 4th Energy Chemistry Forum of the Chinese Chemical Society and learned about high-energy-density and high-safety batteries. I would like to summarize and share this wi...[Details]
What is "Car Electronic Fence"
Fleet managers can define a graphical area (regular or irregular) or divide it into administrative zones in Yamei Technology's vehicle backend management system ...[Details]
Introduction to the principles of speech recognition technology
Automatic speech recognition (ASR) technology aims to enable computers to understand human speech and extract the textual inform...[Details]
Definition of interactive projection system:
Interactive projection systems, also known as multimedia interactive projection, are available in floor, wall, and tabletop interactive projection....[Details]
Recently, Tesla released the "Tesla Car Voice Assistant Terms of Use", announcing that the car voice assistant will be connected to the Doubao large model (Skylark large model) and DeepSeek Chat pr...[Details]
introduction
The concept of the smart home is gradually developing and gaining market acceptance. We believe its ultimate form lies in the interconnection of all home appliances through open i...[Details]
Spark plugs are an indispensable device for engines. As the saying goes, without spark plugs, the engine cannot work properly. The serious consequence is that when driving at high speeds, the engin...[Details]
Recently, Joyson Electronics has made positive progress in the core technology research and development of the robot's "brain and brain" and key components, and launched the industry's first integr...[Details]
The difference between a series inverter and a parallel inverter is that they use different oscillation circuits. A series inverter connects L, R, and C in series, while a parallel inverter connect...[Details]
Before understanding single-phase control transformers, let's briefly understand what a single-phase transformer is. A single-phase transformer uses a single-phase input. Compared to a three-phase ...[Details]
Methods of DC motor speed regulation:
1. The voltage regulator can be used to change the input voltage and speed directly, which is often used for large kilowatt-level motors.
2. Thyristo...[Details]
We often hear about the precautions for using pure electric vehicles in winter, and many owners even develop relevant strategies, such as adopting a "charge as you go" principle for their vehicles,...[Details]
Electric vehicles are composed of three main components: electric motors, electric motors, and electric vehicles. Maintenance is much simpler than for gasoline-powered vehicles. Maintenance for ele...[Details]
Common Mode Semiconductor has officially launched the GM6503 series—a 5 V, 3 A synchronous step-down DC/DC power module designed for optical communications, servers, industrial applications, and FP...[Details]