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Solar power supply circuit of vehicle-mounted automatic electronic charging unit

A technology of solar power supply and automatic charging, which is applied to electrical components, systems for storing electric energy, energy storage, etc., and can solve the problem of consuming electric energy of energy storage devices

Inactive Publication Date: 2012-06-27
SHENZHEN GENVICT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This patent aims to solve the problem that the first voltage stabilizing circuit consumes the electric energy of the energy storage device when the solar energy supply of the electronic automatic toll collection vehicle unit is insufficient

Method used

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  • Solar power supply circuit of vehicle-mounted automatic electronic charging unit
  • Solar power supply circuit of vehicle-mounted automatic electronic charging unit

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Embodiment Construction

[0007] The electronic automatic toll collection on-board unit adopts the solar power supply circuit in the figure. The solar power supply circuit has an energy storage device, and there are two parallel charging branches that can charge the energy storage device: one is the solar charging branch, which is composed of solar power terminals, the second A voltage stabilizing circuit and a diode DS3 (as the first unidirectional conduction element) are connected in series; the second is a backup charging branch, which is formed by a primary battery and a diode DS4 (as the second unidirectional conduction element) connected in series.

[0008] In this embodiment, the first voltage stabilizing circuit outputs a stable voltage of 4V, and the voltage drop of the diode DS3 is 0.12V. After connecting to the solar power supply, when the solar energy supply is sufficient, the solar charging branch outputs a charging voltage of 3.88V; using 3.9V The primary battery is used as a backup power ...

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Abstract

The invention discloses a solar power supply circuit of a vehicle-mounted automatic electronic charging unit. In order to solve the problem that when the solar energy supply is insufficient, a first voltage stabilizing circuit of the vehicle-mounted automatic electronic unit consumes electric energy of an energy storage device, the invention provides the solar power supply circuit of the vehicle-mounted automatic electronic unit, which is characterized in that a first one-way diversion element (DS3) is connected between the first voltage stabilizing circuit and the energy storage device in series on a solar power charging branch circuit, thereby reverse voltage is prevented from being applied to the first voltage stabilizing circuit.

Description

technical field [0001] This patent relates to a power supply circuit of an electronic automatic toll collection vehicle unit, in particular to a power supply circuit powered by solar energy. Background technique [0002] The solar power supply circuit of the existing electronic automatic toll on-board unit (OBU) includes a solar charging branch and an energy storage device. The energy device is charged; the energy storage device is responsible for supplying power to each component. Because the electronic automatic toll collection on-board unit needs to be in the state of waiting to wake up at any time, so the power supply cannot be interrupted. As we all know, solar energy is an energy source with unstable supply, so when the solar energy supply is insufficient, the electric energy stored by the energy storage device will continue to supply power to each component when the solar energy supply is sufficient. In order for the energy storage device to be charged with a stable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J15/00
CPCY02E70/30
Inventor 徐根华向涛刘敬康
Owner SHENZHEN GENVICT TECH