Part 1 of this FAQ explored the basics of the optocoupler. This part looks at key parameters and some application examples. Q: What are the primary factors used when assessing an optocoupler? A: While there are many important factors, there are several which are noteworthy: isolation, current-transfer ratio (CTR), linearity (for analog use), and speed. […]
Optocouplers, Part 1: Principles and usefulness
The optocoupler — also called an optoisolator — is among the most useful, versatile, problem-solving components available to the design engineer. This small non-monolithic device does one thing and does it well, with minimal complications in most cases and no software. This FAQ will look at its operation principles, key parameters, and applications of this […]
PWM buck converters integrate MOSFETs, deliver low parasitics
ON Semiconductor has announced the release of three new highly-efficient mid-voltage PWM buck converters. Supporting a wide input voltage range of 4.5 V to 65 V, an output current of up to 10 A and output power of 100 W, ON Semiconductor’s new FAN6500X family of buck converters combines the time-tested fixed frequency control scheme with […]
Ultra-high PSRR LDO regulators boost performance of imaging and wireless applications
ON Semiconductor has announced a new range of ultra-low noise LDO regulators with the industry’s best power supply rejection ratio (PSRR), enabling better performance in noise-sensitive analog designs. The new NCP16x series, along with the AEC-Q100 qualified NCV81x automotive variants, delivers improved performance in applications such as automotive ADAS image sensor modules, portable devices and wireless applications – […]
Power Electronics Top Talks in February on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Cross related switching losses (Eoss) – I saw this Infineon advertising product video: https://www.infineon.com/cms/media/e…0VCoolMOSCFD7/ In the section “Technical features and benefits” “Improved switching […]
Teardown: Leviton ground fault circuit interrupter
GFCIs detect hazardous current paths to ground and ground-to-neutral faults. A teardown reveals they are relatively simple but have circuit details that can be tricky to figure out. Bathrooms, kitchens, and other rooms with access to water are required to employ ac outlets with ground-fault circuit protection. GFCIs disconnect the output if they sense a […]
Wireless charging products to incorporate Qi- and PMA-compliant controller
ON Semiconductor has announced a strategic collaboration with ConvenientPower Systems (CPS) whereby CPS will design, develop and market in-vehicle wireless charging solutions using ON Semiconductor’s NCV6500 application dedicated, power management controller. The combined initiative is based around a single architecture that is scalable for multiple devices and coils to 15 W. A novel and patented technique for […]
Top power electronics stories of 2017
Here are the power electronics features that got the most interest from readers in 2017. Teardown: Inside Ikea’s smart LED bulb As smart LED bulbs go, this one is pretty simple. It doesn’t incorporate any sort of smartphone app and can’t be controlled over the Internet, like some other smart bulbs […]
Webinar: Automotive Imaging and the Semi-Autonomous / Autonomous Vehicle – November 28
Tuesday, November 28, 2017 2:00pm EST / 11:00am PST As automotive technologies advance, so do the number and complexity of electronically controlled “safety critical” functions inside of a car. Automotive imaging and viewing applications become critical to designs for next generation vehicles to enable new technologies and new solutions and to ensure rigorous […]
Six considerations for better circuit protection
In an electronic system where the power source can be connected the wrong way round, protection should be considered to prevent damage to the circuitry. Most electronic circuits don’t like the power supply being reversed. However, there are other eventualities you could protect your circuit or system from temperature, humidity, excess current or excess loading, […]
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