Dc 5v Ne555 Dc Motor Pwm Signal Speed Control Circuit Board Diy Test Teaching

US $510

Hong Kong, Hong Kong
Jun 5th

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Welcome to my ebay store! You will find your favorite products. Pass by do not miss.thank you! Product Detail ( ---☆ ayanhu81 ebay shop welcome you to buy it ☆---) This is assembled board .The general performance of the board, the price contains small motor, mainly for the experiment and experience. If you require a higher speed of the pulse width,I am afraid it can not meet your satisfaction. Designed to: By understanding this circuit NE555 circuit output pulse width modulated signal to control the DC motor speed. Applications: ( ---☆ ayanhu81 ebay shop welcome you to buy it ☆---) Teaching, training, DIY, practice Parameters: Supply voltage: DC 4V - 6V Principle description: ( ---☆ ayanhu81 ebay shop welcome you to buy it ☆---) D1 is used to prevent damage to the power connection instead NE555, D2, C1, R1, R2, W1, IC1 composition width adjustable pulse generator, potentiometer W1 can adjust the pulse frequency and pulse width of the output change IC1NE555 . Output pulse through R3, R4, R5, Q1, Q2 adjusting drive motor speed. D3, C5 eliminate counter electromotive force generated by the motor to protect the transistor Q3. C2, C4 used for power supply filtering, C3 as a stable reference voltage, to eliminate interference. ( ---☆ ayanhu81 ebay shop welcome you to buy it ☆---) Package included: 1x DC 5V NE555 DC Motor PWM Signal Speed Control Board 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).