Ne555 Duty Cycle Frequency Adjustable Square Wave New Module Parts Components

US $1.46

  • Hong Kong, Hong Kong
  • Jan 29th
a¦aЂ“a°a?a»a?a§a 1/2 aЂ~a©a?aµ 6 NE555 Duty Cycle Frequency Adjustable Square Wave Module Parts Components Description:/font> 100% brand new and high quality Module Scope: -Used as a square wave signal generator produces a square wave signal for the experimental development use. -Used to generate the square wave signal to drive a stepper motor drive. -Produce adjustable pulse for the MCU to use. -Generating adjustable pulse to control the associated circuits. A brief description: -Size:3.5CM * 3.6CM -The main chip:NE555; -Input voltage: 5V-15VDC. 5V power supply, the output current can about 15MA; 12V power supply, the output current can be so 35MA; -Input Current: ? 100MA -Output amplitude: 4.2V V-PP to 11.4V V-PP (depending on the input voltage, the output amplitude is not the same) -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 LED quantity (low straightforward, high level LED off relatively low frequency LED flashes); -Output frequency range grade optional continuously adjustable output frequency; -Low-frequency stall: 1Hz ~ 50Hz -IF stall: 50Hz ~ 1kHz -In the high-frequency stall: 1KHz ~ 10kHz -High-frequency stall: 10kHz ~ 200kHz -the output duty cycle can fine-tune the duty cycle and frequency is not adjustable separately adjust the duty cycle will change the frequency -the output frequency is adjustable; -Cycle T = 0.7*(Ra + 2*Rb)*C -Ra, Rb:0-10K adjustable; -LF gear C = 0.001UF; -IF file C = 0.1UF; -In the high-frequency file C = 1UF;, -High-frequency gear C = 100UF, the waveform frequency buyers can own calculations. NOTE:Output duty cycle can fine-tune the duty cycle and frequency is not adjustable separately adjust the duty cycle will change the frequency Package includes: 1x NE555 Duty Cycle Frequency Adjustable Square Wave Module Parts Components Payment: We accept payment through Paypal ONLY. If you do not have Paypal account, please registered with (http://www.paypal.com)  Payment must be received within 5 days after auctions ended. Please do not  bid if you are not intending to buy. Unpaid dispute will be filed to ebay  for the non payable bidders. Shipping and handling:: Return Policy: We  are not responsible for custom duty or import  tax. We will leave POSITIVE FEEDBACK  after receiving the payment. Please contact us if  your are  not satisfied with the item after receive  it. We could offer  refund,  and refund request is available only requests  within  a week after parcel received & returning the  item as  the same condition as received. We offer 100% refund if the item is broken before  arrival,  all you need to do is sending us the clear  pictures  to show it is broken. Defective situation must be  noticed within 7 days after delivery. All emails will be answered within  1  business day. If you do not receive our reply,  please kindly re-sent your email,and we will reply  to you as soon as possible. All items sold by us  are being described to the best of our abilities, as  accurate as possible, and with utmost  conscientiousness on our part.However, to avoid any  potential oversights, I respectfully request your  assistance in helping us to make this a mutually  satisfactory transaction by Thoroughly reviewing  item description and photos, and asking all  questions Prior To Bidding. Please Note that size  and color representation are subject to  manufacturing variance and may not be exact. Also  note that monitor settings may vary from computer to  computer and may distort actual colors. Please read  these terms thoroughly before placing your bid.  Feedback: We will automatically  leave a positive feedback to everyone who has  complete the transaction and leave us positive  feedback. Please do not forget  to give us Five Stars on all of the Detailed Seller  Ratings. Thanks! In the unlikely event  you are not satisfied with the transaction, please  contact us before you sumbit your evaluation. We  believe that everything could be solved by  communication. 1.in order to provide you the best  service*****,please treat the transaction  fairly.*feedback is simply what we pursue. 2.Please Do contact us first to get a better  solution before you would leave a *neutral or  *negative feedback 3.We strive for 5-star service by stating upfront  our policies, our shipping rate& our shipping  frequency. if you were pleased with this  transaction, please respond with all 5 stars! if you  are not pleased, simply let me know via e-mial  rather than leave low score, and I'll work to make  it that way 4.Please email me through 'MY MESSAGES' or "Ask  Seller Questions" if you have any question about our  listing or your purchase Contact us:  We are in  Shenzhen of Pearl River Delta which is developed  place with economy and Trade We are a profession  trade company. There are about 16000 kinds of  products in my company,Our products include consumer  electronics, Nail Art Tools, Clothes and shoes, cell  phone accessories, computers  accessories, car accessories, Motorcycle accession,  toys & hobbies, jewelry, baby accessories other useful electronics  items and etc If you have any  problems, we are very glad to help you. We rare  handling large volume emails every day. Please allow  us to reply your email within 24hrs For the functional  products in our shop (such as: Chargers, Data  cables), which function is the same as description,  but the actual color and shape may looks a little  different from pictures because of the technical  improvement and actual stock state. Please be  advised before you bid.                                                                                                                        Copyright(c)2005 wangdecheng9898 All Rights Reserved On Dec-04-14 at 22:15:42 PST, seller added the following information:
Condition:
New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections. ...
Country/Region of Manufacture China

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