remote controlled dc motor circuit

This is a simple hobby circuit for a remote-controlled toy car. The primary component utilized is the IR sensor circuit, which includes a TSOP IR receiver. This receiver allows the user to start and stop the DC motor of the vehicle. However, this circuit has a limitation; it cannot control the speed of the DC motor, as it only provides ON and OFF functionality. Therefore, it is primarily suitable for electronics beginners. Once activated, the motor operates at a constant speed. No speed control mechanisms are included in this design. An advanced version of this circuit featuring a PWM speed controller will be provided in the future. A regulated power supply of 5 volts is required for operation, as the TSOP operates at this voltage. The circuit diagram and operation of the remote-controlled DC motor for the car using the TSOP infrared detector circuit are illustrated below. When the voltage at the second pin drops below 1/3 Vcc, the output switches to high (5V) for a time interval determined by T=1.1RC. Following this interval, the output returns to 0V.

The described circuit serves as an introductory project for individuals interested in electronics and remote control systems. The TSOP IR receiver is a critical component, designed to detect infrared signals emitted from a remote control. The circuit's simplicity makes it an excellent choice for beginners aiming to understand the fundamentals of remote control technology and motor operation.

In this circuit, the TSOP IR receiver is connected to a microcontroller or a simple transistor switch that controls the DC motor. The DC motor is powered by a regulated 5V supply, which is essential for the proper functioning of the TSOP IR receiver. The operation of the circuit can be explained through a few key points:

1. **Power Supply**: A stable 5V power supply is necessary to ensure that the TSOP operates correctly. This voltage is also used to power the DC motor.

2. **IR Signal Reception**: The TSOP receives infrared signals from a remote control. When a button is pressed on the remote, it transmits a specific IR code, which the TSOP detects.

3. **Output Control**: Upon receiving the IR signal, the TSOP changes its output state. If the signal indicates to start the motor, the output goes high (5V), activating the transistor or microcontroller to power the DC motor. Conversely, when the signal indicates to stop, the output returns to low (0V), deactivating the motor.

4. **Timing Circuit**: The timing aspect of the circuit is determined by the RC time constant (T=1.1RC). This defines how long the output remains high after the TSOP detects an IR signal. The values of the resistors and capacitors in the timing circuit will dictate the duration for which the motor remains active.

5. **Limitations**: As previously noted, this circuit does not allow for speed control of the motor. The motor runs at a fixed speed once activated. For projects requiring variable speed control, the implementation of a PWM (Pulse Width Modulation) controller would be necessary, which is indicated as a future enhancement.

This hobby circuit provides a foundational understanding of remote control operation and motor control, making it an ideal project for those beginning their journey in electronics.This is a simple hobby circuit of a remote controlled toy car. The main component used here is the IR sensor circuit consisting of TSOP. Using a TSOP IR receiver we can start and stop the DC motor vehicle. However this circuit has a small disadvantage that it can`t control the speed of DC car motor, rather it ON and OFF the small dc motors. Thus i t is suitable for electronics beginners only. Once it is ON, the motor runs with a constant speed. No speed control circuits are discussed here. The advanced version of this circuit with PWM speed controller will be posted soon. You must need a regulated power supply of 5 volt to do this one because TSOP requires 5v for its operation. Below is the circuit diagram and working of remote controlled dc motor for car using T sop infrared detector circuit.

When the voltage at the 2nd pin goes below 1/3Vcc, output switches to high (5V) for the time interval T=1. 1RC. After this time interval output returns to 0V. 🔗 External reference