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Title Implementation of On-chip OVP, OCP and OTP Circuits for DC-DC Converter Design
Posted by Chinet Overstreet
Authors Ligtao, Jennifer Ian ; Overstreet, Chinet ; Nericua, Robert ; Gerasta, Olga Joy ; Hora, Jefferson
Publication date 2019/3/14
Conference 2018 IEEE 10th International Conference on Humanoid, Nanotechnology, Information Technology,Communication and Control, Environment and Management (HNICEM)
Publisher IEEE
Abstract The integration of the three protection circuits namely, over-temperature, over-current, and over-voltage protection circuits for DC-DC Converter is implemented. The over-temperature protection circuit activates whenever the device temperature reaches 150 °C. Over-current condition is reached when current is equal to or more than 500mA which initializes the over-current protection circuit. An improved sensing circuit, which utilizes a gate driver, is implemented to boost its efficiency without using a conventional operational amplifier. When the converter produces an output voltage greater than the specified voltage requirement, the over-voltage protection circuit turns off the converter. The chip core design has a total area of 0.0137 mm 2 and implemented in TSMC 90nm CMOS technology. All expected outputs are achieved based on the simulation results.
Index terms / Keywords protection circuits , over-voltage protection , over-current protection , over-temperature protection
DOI 10.1109/HNICEM.2018.8666254