Altima L4-2.5L (QR25DE) Hybrid (2007)
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The IGBT (2) turns ON, causing the electrical power of the HV battery to charge the reactor. As a result, the voltage in the reactor rises.
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In the next stage, when the voltage in the reactor rises to maximum voltage of DC 650 V, the IGBT (2) turns OFF, causing a counter
electromotive force to be created.
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Induced by the counter electromotive force that is created, the electrical power (maximum voltage of DC 650 V) that is charging the reactor flows
into the inverter.
VOLTAGE DROP CONVERSION FUNCTION
The alternating current, which is generated by MG1 or MG2 for the purpose of charging the HV battery, is converted into maximum voltage of DC 650
V by the inverter. Then, a function of the boost converter drops the voltage to DC 244.8 V, the nominal voltage of the boost converter. This is
accomplished by the IGBT (1) switching ON and OFF through duty cycle control, which intermittently interrupts the electrical power provided by the
inverter.