DC current source design

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I am trying to design a simple, variable, constant DC current source based on the LM334z. I have achieved this using a 4 position selector switch to change Rset, however I would prefer it if I could do the same thing using two buttons instead. Button 1 (up) pressed to select position 1,2,3,4 and button 2 (down) pressed to select 4,3,2,1. The circuit will be powered by a 9v battery. I would like to have 4 LEDs to indicate the position that has been selected. I have no idea whether this can be achieved so any feedback will be appreciated, thanks.

Electronics

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@sagradoamicus

A proposal has not yet been provided

$200 AUD σε 5 ημέρες

4,9

(194 αξιολογήσεις)

7,7

@kingch91

I am an Professional Engineer, I have strong expertise in it I have seen the requirements and understood it Please open chat window and discuss further, so to start and complete the project.

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4,9

(70 αξιολογήσεις)

5,9

@chamikaIGamage

Hi I'm Chamika , Expert with Electronic System design , Please visit my profile for more details For further inquiry don't hesitate to contact , For this we need to make Transistor working in active region with op amp biasing Thank you Chamika Gamage Electronic Engineer

$155 AUD σε 3 ημέρες

5,0

(8 αξιολογήσεις)

4,8

@axkosak

Добрый день, если пришлете схему, могу ее быстро модифицировать так, чтобы все работало с двумя кнопками.

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(5 αξιολογήσεις)

4,6

@sahanwa23

Hi! Im an electrical and electronic undergraduate studying the fourth year in UWE. I have the experience of coding in C/C++/Assembly/Arduino/PIC C/MikroC/MATLAB for more than three years. I also have the knowledge and experience of electrical and electronic circuit analysis and design. I have done BCS (British computer society) diploma level so I have the knowledge on PHP/HTML5/mySQL for website development. I have completed many freelancer assignments successfully. If you are interested in hiring me, please send me a message. Thank you!

$135 AUD σε 3 ημέρες

4,7

(20 αξιολογήσεις)

4,3

@sapna321

Hello, I am an Electronics Engineer. Presently working as a Hardware and Firmware Developer cum Schematic/PCB Designer, having 9+ years of experience. Expertise in Arduino, AVR, PIC, 8051 programming. PCB/Schematic design expertise in Proteus, Altium, Orcad. Also having expertise in using Simulators like Proteus, Multisim. First of all tell me the range of current source means how much minimum and maximum current you require . Then we will discuss later on. This project's duration will depend upon the work to be done. So I put maximum days in the bid. Depending on the dc current rating the bid can be low down. I want to discuss further details. Thanks Sapna Surve

$61 AUD σε 4 ημέρες

5,0

(2 αξιολογήσεις)

1,8

@Puturhandsup

Bis jetzt wurde noch kein Vorschlag eingegeben

$155 AUD σε 6 ημέρες

0,0

(0 αξιολογήσεις)

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@Engrhabeebullah

yes it is possible this is a pretty easy and simple job for me I will do this job in hours but still now I cant tell you how I will do that because that's the trik and I am gona earn from that I am bidding too low because I want to make my profile

$55 AUD σε 2 ημέρες

0,0

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@nevorek

Hi. This task can be done using relays or MOSFETs. That's depend on how selector is using at now. If you provide schematics then i will can set more accurate terms and select better method.

$55 AUD σε 1 ημέρα

0,0

(0 αξιολογήσεις)

0,0

@HoiAnman

Hello bro, give me a draft about your idea and i'll try to design it for you with analog part only for easy testing and debugging. It's nice to work with you, have an awesome weekend hah :))

$45 AUD σε 3 ημέρες