On-Board Charger
A 3.6kW (3.3kW output) on-board charger is standard equipment on the S model LEAF®. A 6.6kW (6.0kW output) onboard charger is available as an option on the S, and standard on the SV and SL models for 2013. The higher output charger reduces charging time by almost half the time taken by the current model. The 6.6 kW in-vehicle charger with 6.0 kW output can deliver a Level 2 (normal) full charge in about 4 hours instead of 7+ hours with a 220-volt power supply. For 2013 it’s located under the hood instead of in the cargo area, so it changes the look under the hood and adds space to the cargo area.
Improved Charge Control
Because the Nissan LEAF® S grade model does not have NAVI the charger timer is set through the driver information display in the meter assembly. On the LEAF® S, there is one timer instead of two, and several charge time settings are no longer available. These include setting the charge start time function, selecting the ON/OFF for days of the week function, and using the remote charge function.
The charger uses a 2-converter system which consists of the PFC circuit and the DC/DC converter. It improves charging efficiency, charge level accuracy, and the ser vice life of the Li-ion battery. The PDM (Power Delivery Module) judges whether the external power supply is 120 V or 220 V, and automatically switches to charging that is appropriate for the power supply.
1. The AC power supply is rectified to DC po wer with rectifier circuit 1.
2. The power factor of the rectified DC power supply is improved by the PFC circuit, and is boosted at the same time.
3. The boosted DC power supply is converted again to AC power supply by the inverter.
4. The voltage of the AC power supply from the inverter is converted by the insulated transformer, and is rectified to high-v oltage DC power by rectifier circuit 2.
5. The rectified high-voltage DC power is output by the output circuit.
Note:
The PFC (Power Factor Correction) circuit is a power factor improvement circuit. It was designed to efficiently convert AC power supply input from an external power source to a DC power supply.