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I will design and simulate analog circuits and filters
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:
- Amplifier Design Op-Amp, BJT, MOSFET-based amplifiers
- Active & Passive Filter Design Low-pass, High-pass,
- Band-pass, Notch filters
- DC-DC Converters Buck, Boost, Buck-Boost topologies
- Voltage Regulators & Power Supply circuits
- Oscillator & Signal Generator circuits
- Transient, AC, and DC operating point analysis
- Frequency response & Bode plot generation
- 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
Expertise:
Debugging
•
Signal processing
•
Other
My Portfolio
Other Electronics Engineering Services I Offer
FAQ
Which types of circuits can you simulate in LTspice?
I can simulate a wide range of analog circuits including op-amp amplifiers, BJT/MOSFET amplifiers, active and passive filters (low-pass, high-pass, band-pass, notch), DC-DC converters (buck, boost, buck-boost), voltage regulators, oscillators, and general power supply circuits and many more
What if the simulation results don't meet my expectations?
Your satisfaction is my priority. I offer revisions on all packages to refine the circuit until the output matches your requirements. For Premium orders, revisions are unlimited. Please message me before ordering so we can align on expectations upfront.
What information do I need to provide to get started?
Simply share your circuit requirements — this can include a hand-drawn schematic, a reference circuit, component specifications, desired output waveforms, or even just a description of what you want the circuit to do. The more details you provide, the faster and more accurately I can deliver your si
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
N 
nafsika_
Greece
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!
5 weeks
Duration
S 
Seller's Response
Helpful?J jstudaway
United States
Ongoing collaborationgreat work
8 days
Duration
S Seller's Response
Helpful?S sannnn2
United States
Ongoing collaborationThe 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.
3 days
Duration
S Seller's Response
Helpful?J jstudaway
United States
Ongoing collaborationAttention to details, Bug free, Deep understanding, and Level of cooperation.
1 day
Duration
S Seller's Response
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
N nafsika_
Greece
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!
5 weeks
Duration
S Seller's Response
Helpful?J jstudaway
United States
Ongoing collaborationgreat work
8 days
Duration
S Seller's Response
Helpful?S sannnn2
United States
Ongoing collaborationThe 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.
3 days
Duration
S Seller's Response
Helpful?J jstudaway
United States
Ongoing collaborationAttention to details, Bug free, Deep understanding, and Level of cooperation.
1 day
Duration
S Seller's Response
Helpful?
