NE555 Square Wave Signal Generator Frequency & Duty Cycle Adjustable
โมดูลกำเนิดสัญญาณสี่เหลี่ยม สามารถปรับค่าความถี่ และค่าดิวตี้ไซเคิลได้ มีไฟ LED แสดงผลตามสัญญาณเอาต์พุต รองรับไฟเลี้ยง 5-12V
การคำนวนหาคาบเวลา
Cycle = 0.7(RA+2RB)C
- RA, RB มีค่าเป็น 10KOhm สามารถประบค่าได้
- C มีค่า 100uf, 1uf, 0.1uf, 0.001uf
ปรับค่าความถี่ได้จากจัมเปอร์
- 1-50HZ
- 50HZ-1Khz
- 1KHz - 10 KHz
- 10Khz - 200Khz
NE555 Square Wave Signal Generator Frequency & Duty Cycle Adjustable
The scope of applications:
1. As square wave signal generator which generates a square wave signal for use experimental development.2. used to generate drive a stepper motor drive square wave signal.3. Adjustable pulse generation MCU for use.4. Have an adjustable pulse control-related circuits.
Description:
1. Size: 3.1cm x 2.2cm 1. Chip: the NE555; 2. Input voltage: 5V-15VDC. 5V supply output current is about 15MA; when 12V power supply, output current is about 35MA3. Input current: ≥100MA 4, Output amplitude: 4.2V V-PP to 11.4V V-PP (different depending on the input voltage, the output amplitude will be different). 5, Maximum output current: ≥15MA (5V power supply, V- when PP is greater than 50%), ≥35MA (12V power supply, V-PP is greater than 50%)
Advantages:
- The output with LED indication, there is no straightforward output (LED low volume, high LED off, LED blink rate is relatively low);
- The output frequency range of grades available, the output frequency more continuously adjustable; low-profile: 1Hz ~ 50Hz IF file: 50Hz ~ 1kHz high frequency gear: 1KHz ~ 10kHz high-frequency gear: 10kHz ~ 200kHz
- They 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 + 2RB) C
- RA, RB is adjustable 0-10K;
- At low frequencies file C = 0.001UF;
- when the IF file C = 0.1UF;
- high frequency profile C = 1UF;
- high frequency gear C = 100UF,
- so the frequency waveform buyers can own calculations.