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Gunasekaran, S.
- FPGA Controlled DC-DC Buck Converter
Authors
1 EEE Department, VLB Janakiammal College of Engineering and Technology, Coimbatore, IN
2 CMS College of Engineering and Technology, Coimbatore, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 1 (2011), Pagination: 57-60Abstract
This paper describes a complete digital controlled DC-DC buck converter performed by Field Programmable Gate Array (FPGA) circuitry. All tasks as are Analog to Digital conversion (A/D), control algorithm and Pulse Width Modulation (PWM) were implemented in the (FPGA). This methodological enables high speed dynamic response and programmability of the controller without external passive components and more the controller structure could be changed from linear to non linear easily, also without external components. The applied algorithm enables the switching frequency of 100 KHZ.Keywords
DC-DC Buck Converter, Digital Control, Field Programmable Gate Arrays, PWM Control.- A Embedded Based Human Protection against Electric Shock
Authors
1 Department of EEE, Excel College of Engineering & Technology
2 Department of EEE, Excel College of Engineering & Technology, IN
Source
Programmable Device Circuits and Systems, Vol 11, No 2 (2019), Pagination: 21-25Abstract
A Embedded based Electric Shock Protection by automatic disconnection of supply is proposed. The Contact currents, that occur when a person touches a conducting surface at higher potential, are used to detect if the person is receiving a shock. The shock arises, contact currents flow through various paths in the body including the skin surface, creating a potential difference on the skin surface. The protection kit, to be worn on human body just like a wristwatch, monitors this potential difference and signals another circuit through wireless communication to disconnect the power supply thus saving the person’s life. It also provides protection when the person touches both the power conductors electrical shocks both with ac and dc power supplies.
Keywords
Contact Currents, Electric Shock, Human Body, Safety.References
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