ماژول مولد پالس NE555

Description

Used as a square wave signal generator produces a square wave signal for the experimental development use. A square wave signal is used to produce a stepper motor-driven drive. Produce the adjustable pulse for MCU use. Generates the adjustable pulse to control the associated circuits.

Technical Specifications

1. The main chip: LM358.
2. Input voltage: 5V-12VDC.
3. The input current: ≥ 100MA.
4. The output amplitude: close to the input voltage.
5. The frequency adjustment range: 0.07HZ-2KHZ (also cycle in about 0.45ms to 15s).
6. Duty cycle adjustment range: 0% to 100% (High / cycle).
7. Output Current: strip 9012 transistor drive capability is strong, about 500MA output current, the output can directly drive small relays or small motors.

Frequency adjustment methods
1. The board has four the shorting cap can select the frequency.
2. Inserted 0 short-circuit cap, the longest cycle upwards to 0.3 s.
3. Inserted one short-circuit cap, the longest cycle can be adjusted to about 4s.
4. Inserted two short-circuit cap, the longest cycle can be adjusted to about 7s.
5. Inserted three short-circuit cap, the longest cycle can be adjusted to about 10s.
6. Inserted four short-circuit cap, the longest cycle can be adjusted to about 15s.
7. Duty cycle adjustment range: 0% to 100% (High / cycle).
8. Output Current: strip 9012 transistor drive capability is strong, about 500MA output current, the output can directly drive small relays or small motors.

Advantages

1. Adjustable duty cycle and frequency resolution.

2. Output with LED indication, there is no output straightforward (LED high amount, low level LED off LED flashes when the low frequency, high frequency LED will be lit, because the naked eye cannot distinguish from)

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