NE555 frecuencia de pulso ciclo de trabajo módulo ajustable onda cuadrada generador de señal de onda rectangular accionamiento de motor paso a paso

Data download link:

http://pan.baidu.com/share/link?shareid=2224116417&uk=2302102993

I.Scope of application of this module:

1. Used as a square wave signal generator to produce square wave signals for experimental development.

2. Used to generate square wave signals to drive stepper motor driver.

3. Generate adjustable pulses for MCU use.

4. Generate adjustable pulses to control related circuits.

II. Brief description:

1, size: 3.1CM * 2.2CM

1.Main chip:NE555;

2, input voltage:5V-15VDC. 5V power supply, the output current can be about 15MA; 12V power supply, the output current can be about 35MA;

3、Input current:≥100MA

4、Output amplitude: 4.2V V-PP to 11.4V V-PP.(According to different input voltage, the output amplitude will be different)

5, output current: ≥ 15MA (5V power supply, V-PP greater than 50%), ≥ 35MA (12V power supply, V-PP greater than 50%)

Three Advantageous features:

1, the output with LED indication, there is no output directly clear (low level LED amount, high level LED extinguished, the frequency is lower when the LED flashes);

2, the output frequency range gear selectable, so that the output frequency is more continuously adjustable;

Low frequency gear: 1Hz ~ 50Hz

Medium frequency gear: 50Hz ~ 1kHz

Medium and high frequency: 1KHz ~ 10kHz

High frequency gear: 10kHz ~ 200kHz

3, the output duty cycle can be fine-tuned, the duty cycle and frequency are not separately adjustable, adjust the duty cycle will change the frequency;

4、Output frequency is adjustable;

Period T=0.7(RA+2RB)C

RA, RB is 0-10K adjustable;

C=0.001UF at low frequency gear;

C=0.1UF at medium frequency gear;

C=1UF for medium and high frequency;

C=100UF at high frequency, so the frequency of the waveform buyers can calculate by themselves.

1, blue on-board NE555 chip

2, single-channel signal output, the output duty cycle of about fifty percent of the square wave

3, on-board adjustable resistor, adjust the resistance value can control the output frequency

4、Onboard power indicator

5、Operating voltage: 5 ~ 12V

6, board size: 29 (mm) x 12 (mm)