NE555 Pulse Signal Generator (For driving stepper, servo)

Description

Purpose:

• Generate a square wave signal for experimental development use.
• Generate a square wave drive signal for driving steppers
• Generate adjustable pulse for MCU.
• Generate adjustable pulse for control-related circuit.

Features:

• Size: 3.1CM * 2.2CM
• the main chip: NE555;
• Input voltage: 5V-15VDC. When 5V supply, the output current can be at around 15MA; when the 12V supply, the output current can be about 35MA;
• the input current: ≥ 100MA
• the output amplitude:. 4.2V V-PP to 11.4V V-PP (different depending on the input voltage, the output amplitude will be different)
• the maximum output current: ≥ 15MA (5V power supply, V-PP greater than 50%), ≥ 35MA (12V power supply, V-PP greater than 50%)

Advantages:

• Output with LED indication, there is no output straightforward (LOW LED quantity, high LED off, LED blink rate is relatively low);
• The output frequency range of grades available, the output frequency more continuously adjustable;
  • LF file: 1Hz ~ 50Hz
  • IF file: 50Hz ~ 1kHz
  • High frequency file: 1KHz ~ 10kHz
  • High-frequency file: 10kHz ~ 200kHz
• You can fine-tune the output duty cycle, duty cycle and frequency are not adjustable, adjust the duty cycle will change the frequency
• The output frequency is adjustable: Cycle T = 0.7 (RA +2 RB) C
  • RA, RB is 0-10K adjustable;
  • At low frequencies file C = 0.001UF;
  • Medium frequency when C = 0.1UF;
  • High frequency file C = 1UF;
  • When high-frequency gear C = 100UF, so the frequency of the waveform buyers can own calculations

Documentation: Schematic, frequency jumper can see in attached pictures.

Additional information

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