Ne555 Pulse Generator Frequency / Duty Cycle Adjust Stepper Motor Driver Tester

US $2000

Hong Kong, Hong Kong
Jun 9th

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Welcome to my ebay store! You will find your favorite products. Pass by do not miss.thank you! Product Detail Operating voltage: 5V-15V Drive current: 1A (open collector output) Duty cycle adjustment range: 5% -95% Products wiring: Positive and negative power supply: VCC GND. Output signal EN, CLK, DIR: signal output common anode connection Dir stepper motor direction signal. Signal output when the direction switch to the left A stepping clock signal Clk. As open collector output. En allow / offline signal, allows you to select a short circuit when the output voltage, no voltage output is disconnected. Product set and Adjustment: As shown, the DIP 3 is set to ON, 4 is set to OFF, this module is set for astable pulse generator, The right of the knob to adjust the pulse duty cycle, when adjusting the duty cycle does not influence the frequency. Duty cycle adjustment approximate range: 5% -95%, the duty cycle is different at different frequencies. Fourth gear frequency bands to choose from, three capacitors 103,473 and 104, respectively. DIP 1 and 2 are OFF, the high band frequency range: F = 1.443 / (RA + RB + R) * C0 = 3.4- 6.6KHZ DIP 1 ON, 2 to OFF when the band: F = 1.443 / (RA + RB + R) * (C1 + C0) = 600-1200KHZ DIP 1 OFF, 2 ON when the low frequency band: F = 1.443 / (RA + RB + R) * (C2 + C0) = 300-600HZ Dip 1 and 2 are both ON the second low frequency: F = 1.443 / (RA + RB + R) * (C2 + C1 + C0) = 200-400HZ Note: The frequency of the theoretical value, the actual capacitance and resistance error, frequency error, calculated without considering the impact resistance of two diodes, the measurement results will vary, when the need to replace the lower frequency capacitance capacity, When capacity is increased by 10 times to 10 times the frequency will be reduced. When DIP 3 to OFF, the DIP 4 is ON, this module is a delay trigger switch. When the time needed to replace long is larger capacitance. Package Included: 1x NE555 Pulse Generator Frequency Duty Cycle Adjust Feedback > We maintain hightest buyer ratings > Positive Feedback will be much appreciated from you. > Any dissatisfaction, please contact us immediately! > Please do not leave neutral or negative feedback before we help you out. Payment > We accept PayPal only. > All major credit cards are accepted through secure payment processor PayPal. > Payment must be received within 7 days of auction closing. Shipping > We Ship to Worldwide, except Hong Kong, Nigeria..... > Items will be shipped within one business day on payment received. > Items are shipped from China using Airmail, delivery time depends on destination and other factors,reach most of the countries within 10 to 35 business days. Country Shipping Way Shipping Time Tracking Number United States China Post 7-12 Yes Russian China Post 15-35 Yes Other Country HK /Swiss Post Air Mail 15-45 No Brazil / Africa HK /Swiss Post Air Mail 35-65 No Returns > Defect: We will fully refund or send you a new replacement,please contact and return within 14 days. > Dissatisfaction: Please contact within 3 days, we will fully refund, after got your returned goods. > Missing parts/Q'ty: Please contact us immediately,for a new package arranged,or a partial refund issued. Contact us > If have any question, Please contact us by ebay message before leaving neutral, negative feedback or open any dispute, we will reply within 24hours, ensure that help you solve the problem, make you satisfied. > Our Working-time From 8:30 AM to 21:30 PM(GMT+08).