Anti-reverse-connection power supply protection circuit, power supply management system and robot

A power supply protection and anti-reverse connection technology, applied in the field of robots, can solve the problems of multi-energy consumption and diode energy consumption, and achieve the effects of low power consumption, prevention of power supply reverse connection, and low cost

Inactive Publication Date: 2020-06-26
CLOUDMINDS SHANGHAI ROBOTICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method dissipates energy due to the voltage drop across the diode
In the case of the same input current, the reactive power consumption of the rectifier bridge anti-reverse circuit is twice that of the single diode anti-reverse circuit, which will generate more energy consumption

Method used

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  • Anti-reverse-connection power supply protection circuit, power supply management system and robot
  • Anti-reverse-connection power supply protection circuit, power supply management system and robot
  • Anti-reverse-connection power supply protection circuit, power supply management system and robot

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Embodiment Construction

[0021] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0022] figure 2 A schematic circuit diagram of the power supply protection circuit against reverse connection provided by the embodiment of the present invention is shown, as shown in figure 2 As shown, the anti-reverse power supply protection circuit 10 includes: a MOS transistor Q1 and a first resistor R1, the gate of the MOS transistor Q1 is connected to one end of a DC power supply through the first resistor R1, and the drain is connected...

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Abstract

The embodiment of the invention relates to the technical field of power supplies, and discloses an anti-reverse-connection power supply protection circuit, a power supply management system and a robot. The power supply protection circuit comprises: an NMOS transistor and a first resistor; the grid electrode of the NMOS transistor is connected with the positive electrode of a direct-current power supply through the first resistor; the drain electrode of the first resistor is connected with the negative electrode of the direct-current power supply, the source electrode of the first resistor is connected with the negative electrode of a load, the first resistor provides bias voltage for the NMOS tube, and the direct-current power supply and the load are controlled to be disconnected by applying the switching characteristic of the NMOS tube when the direct-current power supply is reversely connected. Through the mode, the embodiment of the invention can effectively prevent the reverse connection of the power supply, reduces the conduction voltage drop, and is low in cost and power consumption.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power supplies, and in particular to a power supply protection circuit against reverse connection, a power management system and a robot. Background technique [0002] At present, with the rapid follow-up of the direction of automobile electrification, the market dominance of electric vehicles is gradually increasing, and the replacement and charging of electric vehicles require the participation of electrical contacts. In the process of electrical contact, it is inevitable that the electrical polarity is reversed. If the electrical polarity is reversed, it may cause damage to the equipment and cause accidents. [0003] At present, the most commonly used and simplest electrical anti-reverse connection technology is the positive or negative anti-reverse connection diode. When the circuit connection is correct, the circuit current can pass through the diode smoothly. When the reverse c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H11/00
CPCH02H11/003
Inventor 张海军
Owner CLOUDMINDS SHANGHAI ROBOTICS CO LTD
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