博文

目前显示的是 十二月, 2020的博文

Detection of Motor CBB Capacitor

图片
👉 https://jrpanel.com/T 👈 In our daily life, we all encounter situations where electrical appliances fail to start. When we encounter this situation, we usually ask maintenance personnel to find out the cause of the failure. In fact, we can also check it ourselves. Today, JRPanel will teach you how to detect the failure of the electrical appliance due to the damage of the CBB capacitance.   Taking washing machine as an example, the starting power for AC motors is generally CBB60 capacitor, which is a polypropylene film capacitor, motor running capacitor, it has a wide range of capacity and voltage, small size, rated working life, excellent self-healing performance, The electric capacity is stable, suitable for motors, air conditioners, refrigerators, washing machines, electric fans, ovens, etc.   Take cbb60 12uf 450v as an example, in the case of a multimeter:   1) Remove the capacitor first, touch the leads to discharge the capacitor.   2) Adjust to the x100 gear,...

RoHS Compliance in Membrane Switch

  In several articles published in the past, one concept is often mentioned: RoHS. So what does RoHS mean, and what is its function? Today JRPanel would like to introduce RoHS in membrane switch production to everyone. What is RoHS? RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after  July 1, 2006  must pass RoHS compliance. What are the restricted materials mandated under RoHS? The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). Why is RoHS compliance important? The restricted materials are hazardous to the environment and pollute landfills, and are dangerous in te...

How Do Wearable Devices and Medical LoT Help Deal With the Epidemic

图片
👉 https://jrpanel.com/T 👈 It is estimated that by 2025, the global wearable device market will reach 46.6 billion U.S. dollars, and it is expected to grow at a compound annual growth rate of 20.5% from 2020 to 2025.   As the number of infections continues to rise, medical institutions are overwhelmed. In order to overcome this problem, medical IoT solutions and wearable devices have great potential because it can realize remote monitoring of patient health and automation of medical facilities. This can reduce overexposure to the virus and the burden on front-line medical care.   Let us understand how a wearable automatic health monitoring system that supports the Internet of Things can save medical staff time and work during the COVID-19 pandemic:   Vital signs monitoring:   Frequent monitoring of the patient's vital signs is part of the treatment. For this reason, health care professionals who are in physical contact with patients are likely to be exposed to this ...

Dead Front Panels: Expectations vs. Reality

图片
👉 https://jrpanel.com/T 👈 One of the least commonly used graphical overlay components is the front panel. A fully customizable and versatile user interface solution that can print dead panels to accommodate almost any type of design supported by backlighting, embossing, or other customizable features.   Dead panels have long been the ideal choice for cost-effective and clean user interface design. Unprecedented displays are commonly used in vehicle indicators and control panels, device and dashboard indicator panels, and other types of touch-sensitive keyboards, and can be customized to fit almost any product or industrial application.   However, when using front panels, the product designer should take care to ensure that they are implemented correctly. Depending on the substrate, color control and surface treatment, the application of dead front panels can vary greatly.   How does the substrate material affect the dead front panel?   Polycarbo...

What Principles Should Be Followed in the Design of Industrial Equipment?

图片
👉 https://jrpanel.com/T 👈 Modern industrial equipment design includes many design forms, making industrial equipment products not only have a single function, but also have diversified technical support, making the core functions of industrial equipment products more powerful, smoother and more beautiful, and more compact. Of course, if you want to do a good job in the design of industrial equipment, designers need to consider many issues in the design. Here is a brief introduction to the principles that industrial equipment design needs to follow.   1. Innovative Design Principles   The characteristics of industrial equipment design often manifest as a combination of theory and practical experience and intuition. The comprehensive connotation of modern design has become more and more prominent in product design. Product system, multi-objective, short-period, and multi-variety design requirements make multi-disciplinary and interdisciplinary joint design more common. Th...

Demand Analysis of Smart Home Control System

图片
CLICK→https://jrpanel.com/T After years of development and changes, the smart home control system has been recognized by the public and now gradually accepted. Today, smart homes have entered our lives.   With the rapid development of smart phones, people's expectations for intelligent applications have greatly increased. The demand for smart home service business is increasing, gradually highlighting the potential market prospects. Under this prospect, major Internet and IT companies have entered the smart home field with high profile.   The industry generally believes that the concept of smart home continues to take root in the hearts of the people, smart home items have begun to appear, and the extension of smart homes has become more and more abundant. Competition is getting fiercer. But at the same time, the application effect, acceptance, and popularity of smart home control systems are getting higher and higher. Below we are going to analyze the needs of smart home cont...

Notice on the upgrade of the waterproof process (IP66)

图片
👉 https://jrpanel.com/T 👈 Dear Customer :   Thank you very much for your long-term support to JRPanel.com and your recognition of our product quality. JRPanel is also continuously optimizing the processing technology of membrane switches to improve product quality. Aiming at the three-layer waterproof process (IP66), JRPanel will optimize and upgrade on the basis of the original waterproof process to make the waterproof process performance better and more secure. See the table below for specific changes: About  W aterproof  P roce s s  ( IP66 )  Upgrade Notes # Process upgrade specifics Effect #1 Add carbon paste on all silver paste traces (including tail traces) Better oxidation resistance #2 Add a layer of protective tape on the tail Better oxidation resistance  & W aterproof   resistance  & M oisture resistance   &  B etter tail flexibility After the process is upgraded, because the traces are printed...

Why Are Multi-layer PCBs Mostly Even-numbered Layers?

图片
👉 https://jrpanel.com/T 👈 Why are multi-layer PCBs mostly even-numbered layers and few odd-numbered layers? There are single-layer, double-layer and multi-layer PCBs. The number of layer is not limited. There are currently more than 100 layers on boards. Common multi-layer PCBs are four-layer and six-layer boards.    So everyone will have this question: Why are multilayer PCBs with even-numbered layers?   Relatively speaking, even-numbered PCBs are more than odd-numbered PCBs, and they have more advantages. Today JRPanel would like to solve this question for everyone.   Because of the fewer layer of dielectric and foil, the cost of raw materials for odd-numbered PCBs is slightly lower than that of even-numbered PCBs. However, the processing cost of odd-layer PCB is significantly higher than that of even-layer PCB. The processing cost of the inner layer is the same, but the foil/core structure obviously increases the proc...

3 Tips for RF PCB Layout

图片
  Because the   radio frequency (RF)   circuit is a distributed parameter circuit, skin effect and coupling effect are prone to occur in the actual work of the circuit, so in the actual PCB design, it will be found that the interference radiation in the circuit is difficult to control, Such as: mutual interference between digital circuit and analog circuit, noise interference of power supply, interference caused by unreasonable ground wire, etc. Because of this, how to weigh the pros and cons in the PCB design process to find a suitable compromise, to reduce these interferences as much as possible, and even to avoid the interference of some circuits, is the key to the success or failure of the RF PCB design. From the perspective of PCB LAYOUT, this article provides some processing skills, which are of great use to improving the anti-interference ability of radio frequency circuits. 1.RF layout What we discussed here is the layout of the components of the multilayer board....