Power electronic switch monitoring protection circuit for shared power bank base station

Abstract

The utility model provides a power electronic switch monitoring protection circuit for a shared power bank base station, which comprises an electronic switch chip U1, a capacitor C2, a capacitor C3, a resistor R1 and a resistor R2, the electronic switch chip U comprises an output pin, a grounding pin, a current limiting setting pin, an enabling pin and an input pin, one end of the resistor R1 is connected with the enabling pin of the electronic switch chip U1, and the other end of the resistor R2 is connected with the output pin of the electronic switch chip U1. One end of the resistor R2 is connected with a current-limiting setting pin of the electronic switch chip U1, the other end of the resistor R2 is grounded, one end of the capacitor C2 and one end of the capacitor C3 are respectively connected with an output pin of the electronic switch chip U1, and the other ends of the capacitor C2 and the capacitor C3 are respectively grounded. According to the power electronic switch monitoring protection circuit, through a preset current threshold value, when the current exceeds the preset current threshold value, the switch is turned off, when the output voltage of the chip is higher than the input voltage, the switch is turned off, and an error state is output to the micro-control unit, so that a system can conveniently control the power bank of the notch not to be borrowed any more.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of Internet of Things, in particular to a power electronic switch monitoring protection circuit for a shared power bank base station. BACKGROUND

[0002] The existing shared power bank base station is damaged when the power bank is returned to the base station, and the reverse discharge causes the base station to be damaged and unable to work normally, and in severe cases, the base station can cause a fire. CONTENT OF THE UTILITY MODEL

[0003] In order to solve at least one technical problem of the prior art, the present disclosure provides a power electronic switch monitoring protection circuit for a shared power bank base station.

[0004] The power electronic switch monitoring protection circuit for the shared power bank base station includes an electronic switch chip U1, a capacitor C2, a capacitor C3, a resistor R1 and a resistor R2, the electronic switch chip U1 includes an output pin, a ground pin, a current limiting setting pin, an enable pin and an input pin, one end of the resistor R1 is connected to the enable pin of the electronic switch chip U1, and the other end is connected to the micro control unit of the shared power bank base station, one end of the resistor R2 is connected to the current limiting setting pin of the electronic switch chip U1, and the other end is grounded, one end of the capacitor C2 and one end of the capacitor C3 are respectively connected to the output pin of the electronic switch chip U1, and the other ends are respectively grounded.

[0005] In some embodiments, the model of the electronic switch chip U1 is TMI6263BH.

[0006] In some embodiments, the model of the micro control unit is STC15W408AS-35I, and the other end of the resistor R1 is connected to the 26 pin of the micro control unit of the shared power bank base station.

[0007] In some embodiments, the input pin is connected to the capacitor C1, and the other end of the capacitor C1 is grounded.

[0008] The power electronic switch monitoring protection circuit sets a current threshold in advance, when the current exceeds the set current threshold, the switch is closed, when the chip output voltage is higher than the input voltage, the switch is closed, and the error state is output to the micro control unit (MCU) to facilitate the system to control the power bank in the slot to be not borrowed out. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 Some power electronic switch monitoring protection circuit diagrams for a shared power bank base station in some examples are shown. DETAILED DESCRIPTION

[0010] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0011] The power electronic switch technology is used to reliably manage the charging state of each slot, to monitor the current and voltage parameters of the charging slot in real time, and to close the channel switch if any reverse current occurs, or to close the channel if the output voltage is greater than the input voltage. The charging base station can work efficiently and stably.

[0012] The power electronic switch monitoring protection circuit for the shared power bank base station comprises an electronic switch chip U1, a capacitor C2, a capacitor C3, a resistor R1 and a resistor R2. The model of the electronic switch chip U1 can be TMI6263BH. The electronic switch chip U1 comprises an output pin 1, a ground pin 2, a current limiting setting pin 3, an enable pin 4 and an input pin 5.

[0013] One end of the resistor R1 is connected to the enable pin 4 of the electronic switch chip U1, and the other end is connected to the micro control unit (MCU) of the base station. The model of the micro control unit (MCU) of the base station can be STC15W408AS-35I. The resistor R1 can be connected to the 26th pin of the micro control unit (MCU) of the base station to realize electronic switch enable control, that is, to enable the electronic switch when the high level is high, and to disable it when the low level is low. One end of the resistor R2 is connected to the current limiting setting pin 3 of the electronic switch chip U1, and the other end is grounded to form an electronic switch maximum current threshold setting, which is used to set the maximum current threshold of the electronic switch circuit. One end of the capacitor C2 and one end of the capacitor C3 are respectively connected to the output pin 1 of the electronic switch chip U1, and the other ends are respectively grounded as output filter capacitors. The input pin 5 is connected to the capacitor C1, and the other end of the capacitor C1 is grounded.

[0014] The power electronic switch monitoring protection circuit has a current threshold set by the TMI6263BH chip in advance. When the current exceeds the set current threshold, the switch is closed. When the chip output voltage is higher than the input voltage, the switch is closed, and the error state is output to the micro control unit (MCU) for the system to control the power bank in the slot to be not lent out.

[0015] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power electronic switch monitoring and protection circuit for a shared power bank base station, characterized in that, The electronic switch chip U1, the capacitor C2, the capacitor C3, the resistor R1 and the resistor R2, The electronic switch chip U includes an output pin, a ground pin, a current limiting setting pin, an enable pin, an input pin, One end of the resistor R1 is connected to the enable pin of the electronic switch chip U1, and the other end is connected to the micro control unit of the shared power bank base station, One end of the resistor R2 is connected to the current limiting setting pin of the electronic switch chip U1, and the other end is grounded. One end of the capacitor C2 and one end of the capacitor C3 are respectively connected to the output pin of the electronic switch chip U1, and the other ends are respectively grounded.

2. The power electronic switch monitoring and protection circuit for a shared power bank base station of claim 1, wherein, The model of the electronic switch chip U1 is TMI6263BH.

3. The power electronic switch monitoring and protection circuit for a shared power bank base station of claim 1, wherein, The model of the micro control unit is STC15W408AS-35I, and the other end of the resistor R1 is connected to the 26 pin of the micro control unit of the shared power bank base station.

4. The power electronic switch monitoring and protection circuit for a shared power bank base station of claim 1, wherein, The input pin is connected to the capacitor C1, and the other end of the capacitor C1 is grounded.

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