一、目的: 测试S.M.P.S. 的功率因素POWER FACTOR, 效率EFFICIENCY(规格依客户要求设计). 二. 使用仪器设备: (1). AC SOURCE / 交流电源; (2). ELECTRONIC LOAD / 电子负载; (3). DIGITAL VOLTAGE METER (DVM) / 数字式电压表; (4). AC POWER METER / 功率表; 三.

Fortunately, if you’ve ever needed to test the voltage on your USB-C devices, there is a tool for you. There are quite a few USB-C voltage meters on the market, including one from one of my favourite ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, ...

Adafruit has this week announced the availability of a new Mini Power Meter complete with Voltage, Current, Watt’s mAh and mWh display, which is capable of supporting a wide variety of different ...

Plugable has recently launched its new USB-C voltage and amperage meter for high power devices offering the ability to monitor power and charging up to 240W. The third generation USBC-VAMETER3 USB-C ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. Plugable is one of those fascinating companies that make ...

Precision Digital Corporation has announced the latest member of the ProVu® family of digital panel meters, the PD6400 High Voltage and Current Meter. Precision Digital Corporation has introduced the ...

Have you ever plugged in your laptop or phone and wondered why things are taking so long? How fast is it really charging?! Well, you’re not alone. For those interested in finding out how much power ...

Poway, CA. Vitrek has introduced the HVL-150 SmartProbe, which expands the measurement range of the company’s Model 4700 precision high-voltage meter to 140 kVDC and 100 kVAC (rms). The HVL-150 ...

[Big Clive] had some 22mm digital AC voltmeters, made to put in a panel. There was a time when this would have been a significant pain, since it required you to make a large square hole. Of course, in ...