Circuit-Specific and Technology-Independent Criterion for Selection of Power MOSFETs That Minimize Energy Dissipation
- Resource Type
- Periodical
- Authors
- Joshi, V.; Jadli, U.; Pande, P.; Chaturvedi, M.; Haasmann, D.; Dimitrijev, S.
- Source
- IEEE Access Access, IEEE. 11:116472-116479 2023
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
MOSFET
Capacitance
Resistance
Power dissipation
Voltage
Switches
Logic gates
Channel estimation
Loss measurement
Power system measurements
SPICE
Channel width
conduction losses
power loss
power MOSFET
switching losses
SPICE MOSFET parameters
- Language
- ISSN
- 2169-3536
We investigate the impact of power MOSFET channel width on the power efficiency of a switch-mode power supply. With this analysis, we derive a circuit-specific criterion that minimizes the power dissipated by a power MOSFET, which is based on the ratio between on resistance and output capacitance of the MOSFET and is independent of its technological parameters. The effect of channel width on the power dissipation is illustrated by simulation-based analysis, which also provide an example of a published non-optimum selection of a power MOSFET and demonstrate the advantage of the newly proposed method for MOSFET selection.