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Motor driver IC

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SURAJ KUMAR SAINI

This document presents information about the L293D motor driver integrated circuit. It includes sections on what an L293D is, describing it as an IC that can control two DC motors simultaneously. It also covers the pin descriptions of the L293D, its circuit diagram, working procedures including how it enables motor direction, a description of an H-bridge circuit, and applications of the L293D such as in robots.

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Presentation Topic :- Motor Driver IC (L293D) Submitted By : Suraj Kumar Saini (2015KUEC2015) Naresh Biloniya (2015KUEC2018) 1 Submitted To : Dr. Sangeeta Singh Dr. Vinita Tiwari
Table of content ï‚— What is L293D ? ï‚— Pin description of L293D ï‚— Circuit diagram of L293D ï‚— Working procedures ï‚— Description of H-Bridge ï‚— Application of L293D https://www.google.co.in 2
What is L293D ? ï‚— L293D is a Motor driver integrated circuit which is used to drive DC motors rotating in either direction. ï‚— It is a 16-pin IC which can control a set of two DC motors simultaneously. It means that we can control two DC motor with a single L293D IC. ï‚— Dual H-bridge Motor Driver integrated circuit. The L293D uses 5V for its own power and external power source is needed to drive the motors, which can be up to 36V and draw up to 600mA. 3
Pin description of L293D 4
Circuit diagram of L293D 5
Working procedures ï‚— Drivers are enabled in pairs, with drivers 1 and 2 being enabled by the Enable pin. When an enable input is high (logic 1 or +5V), the associated drivers are enabled and their outputs are active and in phase with their inputs. ï‚— When the enable pin is low, the output is neither high nor low(disconnected), irrespective of the input. ï‚— Direction of the motor is controlled by asserting one of the inputs to motor to be high (logic 1) and the other to be low (logic 0). ï‚— To move the motor in opposite direction just interchange the logic applied to the two inputs of the motors. 6
Description of H-Bridge ï‚— It is an electronic circuit which enables a voltage to be applied across a load in either direction. ï‚— It allows a circuit full control over a standard electric DC motor. That is, with an H-bridge, a microcontroller, logic chip, or remote control can electronically command the motor to go forward, reverse, brake, and coast. ï‚— The term "H-bridge" is derived from the typical graphical representation of such a circuit, which is built with four switches like mechanical. 7
Continue …. S1 S2 S3 S4 Result 1 0 0 1 Motor rotates in onedirection 0 1 1 0 Motor rotates in oppositedirection 0 0 0 0 Motor free runs(coasts) 0 1 0 1 Motor brakes 1 0 1 0 Motor brakes https://www.google.co.in 8
Application of L293D ï‚— It can be easily used to control the motor, so we can easily control robot. ï‚— In commercial robot ï‚— Gesture control robot 9
References ï‚— https://www.rakeshmondal.info/L293D-Motor-DriverIt can be used in commercial robot. ï‚— https://en.wikipedia.org/wiki/H_bridge ï‚— https://www.google.co.in/search?q=h+bridges&source=lnms&t bm=isch&sa=X&ved=0ahUKEwiW1MHFrvvZAhUJbo8KHQ 0JCN0Q_AUICigB&biw=1366&bih=662#imgrc=_kxe4W4OZ NWrdM: 10
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Motor driver IC

  • 1. Presentation Topic :- Motor Driver IC (L293D) Submitted By : Suraj Kumar Saini (2015KUEC2015) Naresh Biloniya (2015KUEC2018) 1 Submitted To : Dr. Sangeeta Singh Dr. Vinita Tiwari
  • 2. Table of content ï‚— What is L293D ? ï‚— Pin description of L293D ï‚— Circuit diagram of L293D ï‚— Working procedures ï‚— Description of H-Bridge ï‚— Application of L293D https://www.google.co.in 2
  • 3. What is L293D ? ï‚— L293D is a Motor driver integrated circuit which is used to drive DC motors rotating in either direction. ï‚— It is a 16-pin IC which can control a set of two DC motors simultaneously. It means that we can control two DC motor with a single L293D IC. ï‚— Dual H-bridge Motor Driver integrated circuit. The L293D uses 5V for its own power and external power source is needed to drive the motors, which can be up to 36V and draw up to 600mA. 3
  • 6. Working procedures ï‚— Drivers are enabled in pairs, with drivers 1 and 2 being enabled by the Enable pin. When an enable input is high (logic 1 or +5V), the associated drivers are enabled and their outputs are active and in phase with their inputs. ï‚— When the enable pin is low, the output is neither high nor low(disconnected), irrespective of the input. ï‚— Direction of the motor is controlled by asserting one of the inputs to motor to be high (logic 1) and the other to be low (logic 0). ï‚— To move the motor in opposite direction just interchange the logic applied to the two inputs of the motors. 6
  • 7. Description of H-Bridge ï‚— It is an electronic circuit which enables a voltage to be applied across a load in either direction. ï‚— It allows a circuit full control over a standard electric DC motor. That is, with an H-bridge, a microcontroller, logic chip, or remote control can electronically command the motor to go forward, reverse, brake, and coast. ï‚— The term "H-bridge" is derived from the typical graphical representation of such a circuit, which is built with four switches like mechanical. 7
  • 8. Continue …. S1 S2 S3 S4 Result 1 0 0 1 Motor rotates in onedirection 0 1 1 0 Motor rotates in oppositedirection 0 0 0 0 Motor free runs(coasts) 0 1 0 1 Motor brakes 1 0 1 0 Motor brakes https://www.google.co.in 8
  • 9. Application of L293D ï‚— It can be easily used to control the motor, so we can easily control robot. ï‚— In commercial robot ï‚— Gesture control robot 9
  • 10. References ï‚— https://www.rakeshmondal.info/L293D-Motor-DriverIt can be used in commercial robot. ï‚— https://en.wikipedia.org/wiki/H_bridge ï‚— https://www.google.co.in/search?q=h+bridges&source=lnms&t bm=isch&sa=X&ved=0ahUKEwiW1MHFrvvZAhUJbo8KHQ 0JCN0Q_AUICigB&biw=1366&bih=662#imgrc=_kxe4W4OZ NWrdM: 10
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