Design of a mitigation circuit to improve MOSFET switching in a half-bridge configuration

 

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Auteurs: Alvarado-Rivera, Giancarlo, Fonseca-Huapaya, Ana Rebeca, Arias-Esquivel, Yeiner
Formaat: artículo original
Status:Versión publicada
Publicatiedatum:2025
Omschrijving:This work addresses the design of a circuit to minimize the adverse effects of MOSFET switching in a half-bridge configuration. MOSFETs suffer from efficiency and stability issues due to parasitic capacitances and inductances. To mitigate these effects, gate-on and gate-off resistors were added, along with a capacitor between the gate and source. These modifications proved effective in simulations and experimental tests, reducing disturbances and voltage spikes while improving system stability. The proposed solution enhances the performance of MOSFETs in high-frequency and high-power applications, increasing energy efficiency and reducing component stress.
Land:Portal de Revistas TEC
Instelling:Instituto Tecnológico de Costa Rica
Repositorio:Portal de Revistas TEC
Taal:Español
OAI Identifier:oai:ojs.pkp.sfu.ca:article/7858
Online toegang:https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/7858
Keyword:Commutation
Half-bridge
Miller inductance
MOSFET
oscillation
Capacitancia de Miller
conmutación
oscilación
medio puente H