INVERTER SYSTEMS FEATURING HYBRID TCM/CCM MODULATION SCHEME
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United States of America
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Apr 10, 2025
app pub date -
Oct 5, 2023
filing date -
Oct 5, 2023
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Abstract
To reduce switching losses, an inverter circuitry of this disclosure may operate using triangular current mode (TCM) control for the semiconductor devices to achieve zero voltage switching (ZVS) at the turn-on of the semiconductor switches. In contrast to other techniques, such as operating the inverter circuitry in continuous conduction mode (CCM), switching devices experience hard switching (usually associated to body-diode hard commutation) at turn-on, and therefore experience the associated switching losses. The inverter circuitry of this disclosure is controlled by processing circuitry, which is configured to apply a smart frequency modulation scheme that enables TCM operation.
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