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 Favorite low phase shift 240Vrms detector – I have a requirement for a very low phase shift, galvanically isolated, zero cross detector […]
Power-supply overvoltage protection, Part 2: Clamps
Part 1 of this FAQ discussed the context of overvoltage protection and crowbars which provide OVP. This part will look at clamps for OVP use. Q: What does the clamp do? A: A clamp conducts just-enough current to maintain the voltage across it at a safe, desired value when the transient is above the clamp’s […]
Power-supply overvoltage protection, Part 1: Crowbars
Engineers who deal with power supplies (as most eventually do) often see the circuit-protection terms “crowbar” and “clamp.” No, there are no references to items purchased at the local hardware store, but they are essential “hardware” elements, meaning autonomous circuit components and functions with no related software. They are used to provide protection to a […]
SMD resettable thermal cutoff protects lithium-polymer, prismatic cells
Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the industry’s first surface mount Miniature Resettable Thermal Cutoff (TCO) devices. Bourns’ new Model SA Series TCO battery protection solutions are compatible with surface mount reflow soldering methods, which eliminate supply chain steps and streamline the manufacturing process. By controlling abnormal, excessive current virtually […]
AC surge protector devices with type 1 and type 2 meet the latest UL 1449 standard
Bourns, Inc. has announced the expansion of the company’s AC surge protective device (SPD) line with two new heavy duty models that meet the latest Underwriters Laboratories’ (UL) 1449 safety and performance standard. Designated Bourns Model 1251 and Model 1252, the two series are high-performance hybrid SPDs. Model 1251 is a Type 1 SPD designed […]
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