Switching power supply device, vehicle, and control method
A technology of switching power supply and control method, which is applied in the direction of circuit devices, battery circuit devices, electric vehicles, etc., to achieve the effect of improving performance
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no. 1 approach
[0029] First, an example of the configuration of the switching power supply device 100 of this embodiment will be described. figure 1 It is a circuit diagram showing a configuration example of the switching power supply device 100 . The switching power supply device 100 is used, for example, as a charging device for vehicles such as electric cars and hybrid cars.
[0030] [Structure of Switching Power Supply Device 100]
[0031] The switching power supply device 100 is a device that converts AC power from an AC power source into DC and outputs it to the battery 20 . exist figure 1 In, as an example, the figure shows the case where the switching power supply device 100 is connected to the single-phase AC power supply 10a, but it may also be as figure 2 , image 3 It is connected to a two-phase AC power supply 10b as shown. The switching power supply device 100 of the present embodiment is configured to be compatible with the single-phase AC power supply 10a and the two-...
no. 2 approach
[0092] Next, an example of the configuration of the switching power supply device 200 of this embodiment will be described.
[0093] [Structure of Switching Power Supply Device 200]
[0094] Figure 6 It is a circuit diagram showing a configuration example of the switching power supply device 200 . The switching power supply device 200 is configured to include three power supply circuits (power supply circuits 1a to 1c) so as to cope with three-phase AC power supply. In addition, in Figure 6 in, for with figure 1 The same constituent elements are assigned the same reference numerals, and their descriptions are omitted.
[0095] The switching power supply device 200 is used, for example, as a charging device for vehicles such as electric cars and hybrid cars.
[0096] switching power supply device 200 compared to figure 1 The switching power supply device 100 shown is different in that a power supply circuit 1c and a switching circuit 7a are added. The power supply ci...
no. 3 approach
[0149] The switching power supply device 300 in this embodiment is as Figure 11 A Y capacitor 2a is used in the mains filter 2 as shown. In this embodiment, the difference from the first and second embodiments is that only when the voltage value of the external AC power supply is equal to or less than a predetermined value, switching relay 8 (and switching relay 8a )disconnect. In addition, in Figure 11 In the drawing, the power supply circuits (power supply circuits 1a, 1b) arranged in two columns are shown, but it is not limited thereto, and may be Figure 12 The power supply circuits (power supply circuits 1a to 1c) are arranged in three columns as shown. Next, a configuration in which the power supply circuits (power supply circuits 1a to 1c) are arranged in three columns will be described as an example.
[0150] Each Y capacitor 2a included in the power supply circuit (power supply circuits 1a to 1c) is grounded in the vehicle. Conventionally, when a switching powe...
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