Temperature-Controlled Fan Project: Amplifying Signals for Fan Control
Build a temperature-controlled fan using resistors, transistors, and a sensor. Amplify temperature signals for fan control. Easy-to-make project demonstrated with a functioning prototype.
00:00:00 This video demonstrates how to build a temperature-controlled fan using a resistor, transistor, and operational amplifier. It also explains the circuit connections on a protoboard.
🔥 The objective is to control the temperature of a fan using an operational amplifier and a transistor.
🛠️ Various components, such as resistors and diodes, are used to build the circuit.
🔌 The circuit is connected using a protoboard and wires, and the power supply is properly configured.
00:02:43 This video demonstrates how to build a temperature-controlled fan using an LM35 sensor and an operational amplifier.
🔍 The video discusses the use of a temperature sensor (LM35) and an operational amplifier in a fan control system.
⚡ The LM35 sensor is connected to the 12-volt power supply and its signal is sent to the non-inverting input of the operational amplifier.
🔧 The amplification of the signal is determined by the two resistors (20kΩ and 100kΩ) in the configuration, and the overall gain is calculated using the formula A = 1 + (RF / R1).
00:05:25 This video demonstrates the construction of a temperature-controlled fan circuit using various components.
🔧 The video shows how to build a temperature-controlled fan using resistors, transistors, and a sensor.
🌡️ By adjusting the resistors, the gain of the amplifier can be set to control the temperature at which the fan turns on.
🌀 The temperature sensor sends a signal to the amplifier, which then activates the fan to regulate the temperature.
00:08:09 A temperature-controlled fan project using an integrated circuit. The circuit amplifies temperature signals for fan control.
🔌 The circuit uses a temperature sensor and operates with 12 volts.
📶 The temperature signal is amplified and sent to the input of the operational amplifier.
⚡ The circuit includes resistors and a motor for controlling the fan speed.
00:10:55 A temperature-controlled fan project that uses operational amplifiers and transistors to amplify the signal and control the fan speed.
🔌 The video discusses the construction of a temperature-controlled fan using an operational amplifier.
💡 The necessary components, including resistors and a diode LED, are explained and connected in the circuit.
🔄 The function of the transistor and the importance of polarity in protecting the circuit are demonstrated.
00:13:38 An easy-to-make temperature-controlled fan project using resistors, transistors, and a temperature sensor. Demonstrated with a functioning prototype.
🔌 The video demonstrates the construction of a temperature-controlled fan circuit.
🔺 The circuit includes resistors that sum up to a total resistance of 20k, providing a gain of 5 for the amplifier.
💨 When the temperature rises, the fan is activated to cool the environment.
00:16:26 A temperature-controlled fan project that cools down the temperature.
🌡️ The video demonstrates how to create a temperature-controlled fan.
🔌 By connecting a temperature sensor and a fan to a microcontroller, the fan turns on when the temperature exceeds a certain threshold.
💡 The fan is controlled using an easy-to-understand Arduino code, making it a beginner-friendly project.
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