I will design and simulate analog circuits and filters

5.0
5.0

Pakistan

I speak English, German, Arabic

15 orders completed

Professional Electrical Engineer with hands on experience in analog circuits

Greetings! I am Rajab Ali, a passionate Electrical Engineer with 7+ years of experience in Analog Circuit Design, Power Electronics, PCB Development, and Embedded Systems. Over the years I have work...

Level 1

Has met certain performance criteria and shows strong potential in the marketplace.

About this Gig

Need an analog circuit that works on paper and in real life? Im Rajab, an electrical engineer with 7+ years of experience. I design and simulate analog circuits in LTspice so you can verify performance before spending money on hardware.


WHAT I DESIGN:

  1. Amplifier Design Op-Amp, BJT, MOSFET-based amplifiers
  2. Active & Passive Filter Design Low-pass, High-pass, 
  3. Band-pass, Notch filters
  4. DC-DC Converters Buck, Boost, Buck-Boost topologies
  5. Voltage Regulators & Power Supply circuits
  6. Oscillator & Signal Generator circuits
  7. Transient, AC, and DC operating point analysis
  8. Frequency response & Bode plot generation
  9. Circuit troubleshooting & optimization


EVERY ORDER INCLUDES:

  • Clean, labeled LTspice schematic (.asc)
  • Transient, AC and DC operating-point results
  • Bode plots and key performance numbers
  • Short PDF report explaining design choices and component values


Recent work: a nine-stage active bandpass filter bank covering 1 mHz to 25 Hz using chopper-stabilized op-amps.


To start, send your target specs (gain, bandwidth, supply voltage, load) or a rough sketch. No specs yet? Tell me what the circuit should do and Ill help define them.


I reply within a moment

Platform:

Other

Sensors:

Temperature

•

Humidity

•

Accelerometer

•

Ultrasonic

Expertise:

Debugging

•

Signal processing

•

Other

My Portfolio

Reviews

4 reviews for this Gig
5.0

(4)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • N
    image-docs

    nafsika_

    GR

    Greece

    5

    Great experience from start to finish. Professional, knowledgeable, and very helpful throughout the project. The work was delivered as requested, and the explanations provided were extremely valuable. Highly recommended!

    $200-$400

    Price

    5 weeks

    Duration

    Helpful?
    Yes
    No
  • J

    jstudaway

    US

    United States

    Ongoing collaboration
    5

    great work

    $100-$200

    Price

    8 days

    Duration

    Helpful?
    Yes
    No
  • S

    sannnn2

    US

    United States

    Ongoing collaboration
    5

    The work was done professionally and efficiently. It showed good quality, attention to detail, clear communication, and timely completion. Overall, the performance met expectations and reflected a strong level of professionalism.

    $50-$100

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • J

    jstudaway

    US

    United States

    Ongoing collaboration
    5

    Attention to details, Bug free, Deep understanding, and Level of cooperation.

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
Reviews

4 reviews for this Gig
5.0

(4)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • N
    image-docs

    nafsika_

    GR

    Greece

    5

    Great experience from start to finish. Professional, knowledgeable, and very helpful throughout the project. The work was delivered as requested, and the explanations provided were extremely valuable. Highly recommended!

    $200-$400

    Price

    5 weeks

    Duration

    Helpful?
    Yes
    No
  • J

    jstudaway

    US

    United States

    Ongoing collaboration
    5

    great work

    $100-$200

    Price

    8 days

    Duration

    Helpful?
    Yes
    No
  • S

    sannnn2

    US

    United States

    Ongoing collaboration
    5

    The work was done professionally and efficiently. It showed good quality, attention to detail, clear communication, and timely completion. Overall, the performance met expectations and reflected a strong level of professionalism.

    $50-$100

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • J

    jstudaway

    US

    United States

    Ongoing collaboration
    5

    Attention to details, Bug free, Deep understanding, and Level of cooperation.

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No