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Four-phase five-wire stepping motor drive IC

A stepper motor, circuit technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve the problem of high control requirements, and achieve the effect of reducing control requirements

Inactive Publication Date: 2020-10-16
无锡思泰迪半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing four-phase five-wire stepping motor drive IC has problems under abnormal conditions and has high control requirements, the present invention provides a four-phase five-wire stepping motor drive IC, which can protect against abnormal conditions effect, reducing the difficulty of control

Method used

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  • Four-phase five-wire stepping motor drive IC
  • Four-phase five-wire stepping motor drive IC

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Embodiment Construction

[0010] See figure 1 As shown, a four-phase five-wire stepper motor driver IC includes a chip body, the chip body is provided with VCC pins, OUT pins, GND pins and control pins, the chip body includes a Logic control module, and the Logic control module passes four The MOS tube is connected to four OUT pins. The Logic control module is also connected to the OTP circuit, OCP circuit and UVLO circuit. The ULVO circuit is connected to the VCC pin. The control pins include DIR pin and PFM pin. To control the running speed of the motor, the PFM pin is directly connected to the Logic control module, and the DIR pin is connected to the Logic control module through the Detect module, such as figure 2 Part, the Detect module mainly includes voltage divider resistors and two comparators. The Logic control module is also connected to the OSC module, which is a clock oscillation circuit.

[0011] VCC provides the power of the entire control IC; the UVLO circuit has a low-voltage detecti...

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Abstract

The invention relates to the technical field of motor drive, in particular to a four-phase five-wire stepping motor drive IC. An abnormal condition can be protected, and the control difficulty is reduced. The four-phase five-wire stepping motor drive IC comprises a chip body, and the chip body is provided with a VCC pin, OUT pins, a GND pin and a control pin. The four-phase five-wire stepping motor drive IC is characterized in that the chip body comprises a Logic control module; the Logic control module is connected with the four OUT pins through four MOS tubes. The Logic control module is further connected with an OTP circuit, an OCP circuit and a UVLO circuit. The ULVO circuit is connected with the VCC pin; the control pin comprises a DIR pin and a PFM pin, the DIR pin is used for controlling the working state of the motor, the PFM is used for controlling the running speed of the motor, the PFM pin is directly connected with the Logic control module, and the DIR pin is connected withthe Logic control module through a Detect module.

Description

technical field [0001] The invention relates to the technical field of motor drive, in particular to a four-phase five-wire stepping motor drive IC. Background technique [0002] Stepper motors are widely used in various mechanical automation equipment. Four-phase five-wire stepper motors have the characteristics of large torque and simple control methods among stepper motors. The traditional control circuit mainly has four NMOS or ULN2003 with integrated Darlington tube to control the four-phase five-wire stepping motor. [0003] The typical four-phase five-wire stepper motor control circuit is a typical four-phase five-wire stepper motor control circuit in two ways: 4 NMOS or ULN2003 integrated Darlington tube. Low voltage, overcurrent, etc. will cause the motor to fail to operate normally, and the input control pins are 4 I / O ports, which have high requirements for control. Contents of the invention [0004] In order to solve the problem that the existing four-phase f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/14H02P8/36
CPCH02P8/14H02P8/36
Inventor 方帅
Owner 无锡思泰迪半导体有限公司
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