Bidirectional direct-current motor driving integrated circuit

Abstract

The invention relates to a bidirectional direct-current motor driving integrated circuit, which comprises a control chip, an H-bridge switching circuit connected with the control chip, a forward input end, an inversion input end, a positive output end, a negative output end, a power supply positive electrode and a power supply negative electrode, wherein the H-bridge switching circuit is connected between the power supply positive electrode and the power supply negative electrode and comprises a first switching chip, a second switching chip, a third switching chip and a fourth switching chip which are connected with one another. Due to an optimized design and an optimized structure, the bidirectional direct-current motor driving integrated circuit has the advantages of small encapsulation volume, high efficiency, high driving current energy, multiple functions and the like; and by the bidirectional direct-current motor driving integrated circuit, the production and use cost of the whole circuit can be reduced.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to a bidirectional DC motor driving integrated circuit. Background technique [0002] In the current DC bidirectional motor drive circuits such as toys, it is required to have low loss, small size and multiple functions, such as over-current and over-temperature protection functions, and at the same time must have a certain driving current capability. The current implementation methods are basically divided into two types: one is that a single integrated circuit is composed of a single integrated circuit chip, and the other is that it is composed of discrete components. [0003] The advantage of a single integrated circuit is that it has multiple functions and flexible applications. The disadvantage is that the efficiency is not high, and the output current capacity is not large due to thermal problems, and the application range is limited. Moreover, the shape of the integrated circuit pack...

AI Technical Summary

Problems solved by technology

[0003] The advantage of a single integrated circuit is that it has multiple functions and flexible applications. The disadvantage is that the efficiency is not high. Due to thermal problems, the output current capacity is not large, and the application range is limited.

Moreover, the shape of the integrated circuit package should also be selected according to the size of the output current, and some of them have a large shape, which is very inconvenient to use.

[0004] The driving circuit composed of discrete components has the advantages of strong output capability and high efficiency, but the disadvantages are simple functions and large volume. If the over-temperature and over-current protection functions are to be realized, the circuit is very complicated

Images