On-board charging system and vehicle having same

Abstract

The invention discloses an on-vehicle charging system and a vehicle with the same. The on-vehicle charging system includes a first resonant circuit module, a second resonant circuit module, a DC conversion circuit module and a control module. The first resonant circuit module supplies power to the first half The periodic electrical signal is converted; the second resonant circuit module converts the electrical signal of the second half cycle of the power supply; the first resonant circuit module and the second resonant circuit module multiplex the second conversion unit, and the DC conversion circuit module converts the input The electric signal performs DC-DC conversion; the control module controls the gate of the first resonant circuit module during the first half cycle of the power supply, controls the first resonant circuit module according to the timing signal of the first half cycle of the power supply, and controls the first half cycle of the power supply. The second resonant circuit module is gated, and the second resonant circuit module is controlled according to the timing signal of the second half cycle of power supply. The system and vehicle are designed with electrolytic capacitors, which can reduce costs and improve stability.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an on-board charging system and a vehicle with the on-board charging system. Background technique [0002] figure 1 It is a circuit diagram of an on-board charging system in the related art. One end of the system is connected to the power grid, and the other end is connected to the battery pack, including Part1' and Part2' two-stage circuits. During forward charging, Part1' realizes AC-DC conversion and power factor correction, and outputs DC voltage. Part2’ is a DC-DC converter that outputs a suitable voltage to charge the battery pack. For this system, in order to provide a stable input DC voltage for the latter stage part2', a large-capacity electrolytic capacitor C1' is required between Part1' and Part2', which increases the volume and cost of the system, and the electrolytic capacitor C1' has a lifespan and is shock-resistant problem, which is detrimental to the reliabil...

AI Technical Summary

Problems solved by technology

For this system, in order to provide a stable input DC voltage for the latter stage part2', a large-capacity electrolytic capacitor C1' is required between Part1' and Part2', which increases the volume and cost of the system, and the electrolytic capacitor C1' has a lifespan and is shock-resistant problem, which is detrimental to the reliability of the system

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