A waterproof handlebar control circuit for an electric vehicle
A control circuit, electric vehicle technology, applied in bicycle control systems, bicycle accessories, transportation and packaging, etc., can solve the problems of normal driving and high speed regulation signal voltage, and achieve simple structure, stable sampling voltage, and good reliability. Effect
Active Publication Date: 2017-11-17
JIANGSU ZHONGTONG ELECTRONICS TECH
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Problems solved by technology
[0003] The purpose of the present invention is to provide a waterproof handle control circuit for an electric vehicle, which solves the technical problem that the voltage of the speed regulation signal is too high due to rain and cannot drive normally
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Embodiment Construction
[0011] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:
[0012] See figure 1 , a control circuit for a waterproof handlebar of an electric vehicle, comprising: a Hall element, and further comprising: the signal output terminals of the Hall element are respectively connected to the collectors of the first and second switch tubes, and the first switch tube The base is controlled by the MCU module, and its emitter is connected to the first signal input terminal of the MCU module; the base of the second switching tube is controlled by the MCU module, and its emitter is connected to a series voltage divider circuit, and The output end of the series voltage divider circuit is connected to a voltage follower, and the output end of the voltage follower is connected to the second signal input end of the MCU module.
[0013] Wherein, the MCU module may be a single-chip microcomputer, that is, a control module for controlling t...
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The invention relates to a control circuit for a waterproof handle of an electric vehicle, comprising: a Hall element, the signal output ends of the Hall element are respectively connected to the collector electrodes of the first and second switch tubes, and the base of the first switch tube The pole is controlled by the MCU module, and its emitter is connected to the first signal input terminal of the MCU module; the base of the second switching tube is controlled by the MCU module, and its emitter is connected to a series voltage divider circuit, connected to the A voltage follower connected to the output terminal of the series voltage divider circuit, the output terminal of the voltage follower is connected to the second signal input terminal of the MCU module. The invention is simple, through the simple series voltage division, the output voltage of the Hall element is stepped down. Due to the characteristics of the resistance, the step-down method is linear, and the voltage follower plays the role of isolation, which stabilizes the sampling. Voltage; the present invention has the characteristics of simple structure, low cost and good reliability.
Description
technical field [0001] The invention relates to the field of electric vehicles, in particular to a control circuit for waterproof handlebars of electric vehicles. Background technique [0002] In the process of riding a traditional electric vehicle in rainy days, rainwater easily enters the handlebar of the electric vehicle, causing a weak short circuit between the +5V connector in the handlebar and the speed control signal, which makes the voltage of the speed control signal higher, that is, greater than 1.2 v, so it causes a voltage failure; the current market practice is: when the power is turned on, if the handlebar > 1.2V, the controller will enter the protection state and cannot ride. Contents of the invention [0003] The purpose of the present invention is to provide a waterproof handle control circuit for an electric vehicle, which solves the technical problem that the voltage of the speed regulation signal is too high due to rain and cannot drive normally. ...
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IPC IPC(8): B62K23/04
Inventor 沈志军
Owner JIANGSU ZHONGTONG ELECTRONICS TECH