Find Jobs
Hire Freelancers

556 Timer Circuit design

$250-750 USD

Teljesítve
Kiadva ekkor: több mint 3 évvel ezelőtt

$250-750 USD

Teljesítéskor fizetve
Provide a schematic design for a 556 dual timer IC base circuit to be triggered by a phototransistor with the result that two simultaneous 5v pulses are generated. The first pulse shall be approximately 50ms in duration and the second shall be approximately 1000ms in duration. The two timer circuits within the 556 IC shall be effectively interlocked such that the first 50ms pulse may not be repeated during the 1000ms pulse regardless of any intervening trigger event. The supply voltage for the system shall be 5v. If practicable, the design shall include the following components: Texas Instruments model TLC556CDR IC OSC TIMER DUAL 2.1MHZ 14-SOIC, datasheet available at:[login to view URL]; OR the Texas Instruments model TLC556IDR IC OSC TIMER DUAL 2.1MHZ 14-SOIC, same data sheet as above. The design shall also be based upon the model SFH 3310 570nm Phototransistor by OSRAM Opto Semiconductors Inc., datasheet available at: [login to view URL] This is one small part of a larger product design and there is the potential for ongoing work if we find someone who is the rght fit We need someone with significant real world experience with the 555/556
Projektazonosító: 28410416

A projektről

25 ajánlat
Távolról teljesíthető projekt
Aktiválva: 3 évvel ezelőtt

Szeretne pénzt keresni?

A Freelancer oldalán történő árajánlatadás előnyei

Határozzon meg költségvetést és időkeretet
Kapja meg fizetését a munkáért
Vázolja ajánlatát
Ingyen regisztrálhat és adhat árajánlatot munkákra
Neki odaítélve:
Felhasználó avatár
$0 USD 3 napon belül
4,9 (32 értékelés)
6,4
6,4
25 szabadúszó adott átlagosan $378 USD összegű árajánlatot erre a munkára
Felhasználó avatár
Best Circuit Design Expert at your doorstep! Dear Client, WE have real experience with 555 Timer IC and could even build an amplifier circuit for Photodiode detection. We couldn’t stop ourselves from bidding after going through the description as they are an exact match with our skill set and experience. We have experience in 555 and phototransistor based PCB design and know all the intricacies required to get the job done with perfection. With more than 15 Years of experience in PCB Design and Circuit Design in Altium, We can ensure you best quality work and before time delivery. Following is a brief list of expertise that we are carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc 7. TLC556CDR, SFH 3310 Please answer the following questions: 1 What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? 4. Are there any other specific requirements besides the ones you mentioned Let’s have a quick discussion for 5 mins where we would formulate a plan of action of how we shall take this project to the horizons of success. Regards Avi Tech Experts Quality is never an Accident
$750 USD 2 napon belül
5,0 (60 értékelés)
7,8
7,8
Felhasználó avatár
Dear sir I have more than 10 years experience in electronic and embedded systems design, please message me so that we can discuss the design details Best Regards
$500 USD 7 napon belül
4,9 (317 értékelés)
7,7
7,7
Felhasználó avatár
Hi I am experienced electronics engineer with more than 14 years of experience. I have read the details and have designed circuit with 555/556 timers before. Please get in touch to discuss it further Regards
$250 USD 5 napon belül
4,8 (274 értékelés)
8,0
8,0
Felhasználó avatár
Hello I have got your job posting “556 Timer Circuit design” and I am very much interested to work in your project. I am a circuit designer and have more than 5 years experience of working with the Analog/Digital Electronics embedded systems. I have done tons of similar projects So, I think you’ll find, I have the skills you’re looking for. For more on my skills and successfully finished projects, please have a look on my Profile and Portfolio. I have all the components available here with me so i will develop a working prototype according to your specifications and then send you the code and schematics so things will work for sure. I will remotely guide you and help you build the system on your side. I am always available on Email and Skype. Please have a voice or video chat if necessary. I shall be available round the clock and able to start your project as soon as possible according to you. Thank you for your consideration, Best Regards, Haseeb Shafqat
$400 USD 7 napon belül
4,9 (68 értékelés)
6,6
6,6
Felhasználó avatár
Hi. I have good experience in 555 timer chip circuit design and simulation. I have read your project description carefully, so I am very confident in your project. I will finish your project in time perfectly. Please let me discuss about your project in detail. Best regards, Andrii.
$350 USD 3 napon belül
4,9 (40 értékelés)
6,6
6,6
Felhasználó avatár
Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.
$250 USD 3 napon belül
4,9 (99 értékelés)
6,4
6,4
Felhasználó avatár
Hello, Dear. I am an electronic engineer and PCB designer. I have read your requirement. I have enough experience in designing digital circuits. I can deliver you high quality design. I hope to help you. Thank you.
$500 USD 7 napon belül
5,0 (33 értékelés)
5,7
5,7
Felhasználó avatár
Hi, I have done something like this for RC model aircraft glow plug and input throttle pulse control interlocking. In other words, when the glow plug is turned on (one pulse), the throttle (another pulse in) can no longer be changed. This helps to start the glow engine more reliably. Anyway, I am designing a donut making machine timing control circuit board with ICM7555CBAZ-T (single 555) as I am typing this. I short, I think fit your profile. For my other projects and how they were completed, please take a look at my profile. If interested, give me a holler. Best regards, Brian
$500 USD 7 napon belül
5,0 (30 értékelés)
5,8
5,8
Felhasználó avatár
Dear client, I've seen your project description carefully. I surely got your idea. I have rich experience in electronic circuit design. Especially I built similar project with 555. I can also provide the PCB with the schematic to make the real device If you give me a chance to interview, I will explain my idea and will do my best to satisfy you. I would never disappoint you. I am new in here but I really have many experience in Electronic Circuit design In that case, I think I am suitable person to do this project. Best regards
$250 USD 7 napon belül
4,8 (7 értékelés)
5,3
5,3
Felhasználó avatár
Hello I have more than 15 years of experience in the embedded systems design and pcb design and electronics systems design So let's discuss your project in chat
$350 USD 3 napon belül
5,0 (21 értékelés)
5,0
5,0
Felhasználó avatár
hi In my past projects i have designed lots of circuits, so i can complete your project. Also i can manufacture the prototypes and test it if you want. Please contact me.
$500 USD 7 napon belül
5,0 (7 értékelés)
5,2
5,2
Felhasználó avatár
An easy proect to be done, U will get the best work done accompanied with brotherhood........................
$250 USD 7 napon belül
4,8 (91 értékelés)
5,0
5,0
Felhasználó avatár
Dear Employer, I am an Electronics Engineer, Programmer, PCB designer, Circuit designer and an expert in Raspberry pi programming. I can do this project. I completed almost 85 projects till now. I am an expert in circuit designing and i can show the simulation also. I can complete this project in less than 1 day. Thank you for spending your time in my application.
$250 USD 1 napon belül
4,9 (31 értékelés)
4,8
4,8
Felhasználó avatár
Hi. The interlock can be carried out feeding the base of a npn transistor with the output of the 1000ms pulse. The colector should have a pull up resistor and the emiter should be wired to ground. The node between the pullup resistor and the transistor can be used to feed the colector of the phototransistor, whose emiter is connected to the trigger input and to a resistor to ground. My bid is 50 USD for the schematics in Altium. best regards Rolando
$250 USD 2 napon belül
5,0 (7 értékelés)
3,4
3,4
Felhasználó avatár
Hi, if you want just a schematic, I can provide you one simple but very practical. But if you need also a PCB, I am afraid that I can not make one. Also, I tried to bid with 30 but smallest amount is 250, by my opinion and if I understood the problem, 250 is waaaay to high for schematic. So, if you want, contact me and I will provide you simulated example of the solution with logic explanation.
$250 USD 7 napon belül
0,0 (0 értékelés)
0,0
0,0
Felhasználó avatár
Dear client,... I have more than 5 year's experience in product development so I can design for manufaturibility assembly Testing with Multi layer up to 8layer. High speed Design, mixed signal Analog and digital design and I am a hard-working person so I will thanks and regards, raj
$556 USD 10 napon belül
0,0 (0 értékelés)
0,0
0,0
Felhasználó avatár
Dear Sir, I have worked on similar projects to what you are looking for, and I am confident I can exceed your expectations. Thanks & Regard, Dhanraj jaiswal
$250 USD 7 napon belül
0,0 (0 értékelés)
0,0
0,0
Felhasználó avatár
Hello sir, I am an electronics engineer and developer.I have vast experience in analog circuit designing .The timer circuit using 556 with interlocking output is very challenging and I would like to interested to do it.I have an experience in 555 based timer design to generate output of varying frequency and duty cycle and with some analog circuitry i can able to generate the interlocking functionality too. If I get chance to interview I can explain you. I am really interested to work with you . Thank you
$300 USD 7 napon belül
0,0 (0 értékelés)
0,0
0,0

Az ügyfélről

UNITED STATES zászlója
Clearwater, United States
5,0
2
Fizetési mód hitelesítve
Tagság kezdete: nov. 29, 2013

Ügyfél-hitelesítés

Köszönjük! E-mailben elküldtük a linket, melyen átveheti ajándék egyenlegét.
E-mailje elküldése során valami hiba történt. Kérjük, próbálja újra.
Regisztrált Felhasználók Összes Közzétett Munka
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Előnézet betöltése
Hozzáférést adott a helymeghatározáshoz.
Belépési munkamenete lejárt, és kijelentkeztettük. Kérjük, lépjen be újra.