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NE555 Signal Generator
Signal generator
Applicaon scope
- 1. Used as a square wave signal generator produces a square wave signal for the experimental development use.
- 2. A square wave signal is used to produce a stepper motor-driven drive.
- 3. Produce the adjustable pulse for MCU use.
- 4. Generates the adjustable pulse to control the associated circuits.
Descripons
- 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 shorng cap can select the frequency.
- 2. Inserted 0 short-circuit cap, the longest cycle upwards to 0.3 s.
- 3. Inserted 1 short-circuit cap, the longest cycle can be adjusted to about 4s.
- 4. Inserted 2 short-circuit cap, the longest cycle can be adjusted to about 7s.
- 5. Inserted 3 short-circuit cap, the longest cycle can be adjusted to about 10s.
- 6. Inserted 4 short-circuit cap, the longest cycle can be adjusted to about 15s.
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