7+ Ne555p 使い方 References

NE555 Timer IC 555 Timer IC Other from www.flyrobo.in

Introduction

NE555P is a widely used timer IC that has been in the market for decades. It is a versatile chip that can be used for various applications, ranging from timing circuits, pulse generation, and oscillator circuits. In this article, we will discuss the NE555P usage, its pin configuration, and how to use it for different applications.

NE555P Pin Configuration

The NE555P chip has eight pins, and each pin serves a specific purpose. Pin 1 is the ground pin, while pin 2 is the trigger pin. Pin 3 is the output pin, and pin 4 is the reset pin. Pin 5 is the control voltage pin, and pin 6 is the threshold pin. Pin 7 is the discharge pin, while pin 8 is the supply voltage pin.

NE555P Timer Circuit

The NE555P can be used as a timer circuit by configuring it in the monostable mode. In this mode, the output of the timer stays high for a duration that is determined by the value of the resistor and capacitor connected to the IC. The formula for calculating the timing duration is given as t = 1.1RC, where t is the timing duration, R is the value of the resistor, and C is the value of the capacitor.

NE555P Oscillator Circuit

The NE555P can also be used as an oscillator circuit by configuring it in the astable mode. In this mode, the output of the timer produces a square wave signal with a frequency that is determined by the value of the resistor and capacitor connected to the IC. The formula for calculating the frequency is given as f = 1.44/((R1+2R2)C), where f is the frequency, R1 is the value of one resistor, R2 is the value of the other resistor, and C is the value of the capacitor.

NE555P Pulse Generation Circuit

The NE555P can also be used to generate a pulse. In this circuit, the output of the timer produces a pulse of a specific duration. The duration of the pulse is determined by the value of the resistor and capacitor connected to the IC. The formula for calculating the pulse duration is given as t = 0.693(RC), where t is the pulse duration, R is the value of the resistor, and C is the value of the capacitor.

NE555P Applications

The NE555P chip can be used in various applications. Some of the applications include:

LED Flasher Circuit

The NE555P can be used to create an LED flasher circuit. In this circuit, the output of the timer is connected to the LED, which flashes on and off at a specific frequency.

Alarm Circuit

The NE555P can be used to create an alarm circuit. In this circuit, the output of the timer is connected to a speaker or buzzer, which produces an alarm sound when triggered.

PWM Circuit

The NE555P can be used to create a pulse width modulation (PWM) circuit. In this circuit, the output of the timer produces a pulse with a varying duty cycle, which can be used to control the speed of a motor or the brightness of an LED.

Conclusion

In conclusion, the NE555P is a versatile IC that can be used for various applications. It is easy to use and configure, making it a popular choice among hobbyists and professionals alike. Whether you want to create a timer circuit, oscillator circuit, or pulse generation circuit, the NE555P is an excellent choice. We hope that this article has provided you with a comprehensive guide on the NE555P usage in 2023.