Microcontroller Theory And Applications Ajay V Deshmukh Tata Mcgraw Hill

In the proposed system if the bell type switch not pressed, it will send a pulse to the microcontroller which will turn on the dc motor, thus making it to rotate forward, thus increasing the knee locked state. For unlocking the knee when the bell type switch is pressed, a pulse will be sent to the microcontroller so that it will rotate in the reverse direction making the dc motor to rotate backward and thus reducing the knee locked state. The knee will be locked again when the bell type switch is not pressed and the micro controller receives no pulse from the switch.

Apart from this, we have designed a higher order control for the knee joint of this system. The knee joint of this system consists of the two DC motors, an encoder, position feedback from the joint as well as a microcontroller that controls the joint. The microcontroller is programmed using two-speed driver and the joint position is feedback from the encoder. The knee joint of this system is provided with the two-speed DC motor driver, and the knee joint of this system is provided with the two-speed DC motor driver, and the knee joint can be moved to the desired position and the speed as well as the position can be controlled for the movement of the knee joint.

In this paper we have developed a motorized knee joint for partial paralysis which provides a two-speed capacity with easy installation and modification on the knee joint. It is a two-mode system, which can be switched with internal control system. Both modes are for different applications. The first mode for walking if done in emergency and the second mode is for stepping. The knee joint of this system is provided with the two-speed DC motor driver, and the knee joint of this system is provided with the two-speed DC motor driver, and the knee joint can be moved to the desired position and the speed as well as the position can be controlled for the movement of the knee joint.

The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. This device is designed to drive inductive loads such as relays, solenoids, dc and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications. 827ec27edc