AnalogDialogue EngineerZone Wiki Careers Shopping Cart SEARCH Company myAnalog Products Applications Design Center Education Design Center > Glossary of EE Terms > Overvoltage Protection Print RELATED CONTENT Overvoltage Protection What is Overvoltage Protection? Resources Technical Articles De nition Overvoltage Protector (OVP) refers to a circuit that protects downstream circuitry from damage due to excessive voltage. An OVP monitors the DC voltage coming from an external power source, such as an off-line power supply or a battery, and protects the rest of the connected circuitry using one of two methods: a crowbar clamp circuit or a series-connected switch. The crowbar short-circuits or clamps the supply line to limit the voltage, possibly triggering other forms of protection such as a fuse. Alternate Circuits for Overvoltage Protection: Tips and Tricks Technical Articles Overvoltage Protection (OVP) for Sensitive Amplifier Applications Product Categories Power Monitor, Control, and Protection The series-connected switch uses a MOSFET or transistor connected as a switch in series with the supply line. During an overvoltage condition, the OVP circuit rapidly shuts off the MOSFET and disconnects the downstream circuit. Glossary Synonyms Crowbar Circuit OVP Find a term alphabetically: Select a Letter SOCIAL QUICK LINKS LANGUAGES NEWSLETTER Interested in the latest news and articles about ADI products, design tools, training and events? Subscribe today! About ADI Investor Relations English ADI Signals+ News Room 简体中文 Analog Dialogue Quality & Reliability 日本語 Careers Sales & Distribution Contact us Incubators ©1995 - 2023 Analog Devices, Inc. All Rights Reserved 沪ICP备09046653号-1 Sign Up Sitemap Legal Privacy & Security Privacy Settings Support
