Hall detection signal processing device and electronic equipment

Abstract

The invention provides a Hall detection signal processing device and electronic equipment, and the Hall detection signal processing device is installed in the electronic equipment. The electronic equipment comprises a Hall sensor for generating a Hall detection signal, a first power supply connected to the processing device and supplying power to the electronic equipment, a processor, and a secondpower supply supplying power to the processor; and the processing device is provided with a voltage dividing point. The processing device comprises a comparison module which is connected with the Hall sensor and the processor, and used to compare a voltage of the Hall detection signal with a sum of a dividing voltage in the voltage dividing point and a predetermined voltage so as to manage a power supply voltage supplied to the processor by the second power supply. The Hall detection signal processing device and electronic equipment are simple in lines and low in device cost, does not consumepower of a storage battery, and does not need resistance matching.

Description

technical field [0001] The invention belongs to the technical field of brush motor control for automobiles, and relates to a processing device, in particular to a processing device and electronic equipment for Hall detection signals. Background technique [0002] Now there are more and more occasions where brushed motors are used for adjustment in cars, such as wipers, electric doors and windows, electric seats, and telescopic adjustment and elevation adjustment of the steering wheel, etc. Brushed motors are generally equipped with Hall sensors. Whenever the motor rotates one revolution, the Hall sensor outputs a high and low level pulse signal for external counting and position detection. [0003] For the convenience of power management, the power supply of the Hall sensor generally uses the voltage Up of the car battery, which ranges from 9V to 16V. The pulse waveform output by the Hall sensor, such as figure 1 shown. The values ​​of its high level UH and low level UL ...

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a processing device and electronic equipment for Hall detection signals, which are used to solve the problem of comparing Hall detection signals due to the use of integrated comparators in the prior art. However, the cost of the processing circuit is high, the car battery needs to be directly powered, the battery power is consumed, and in order to adapt to the integrated comparator, it is necessary to set up matching electronic components in the processing circuit.

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