อิเล็กทรอนิกส์อนาล็อก Jobs

I’m developing a six-cell lithium battery management system and need the PCB laid out in EasyEDA Pro. Show me previous BMS or power-electronics, or similarly demanding boards you have designed—screenshots, photos of assembled units, or links to public EasyEDA projects are perfect. A quick note on the challenges you solved in those jobs will help me gauge fit. Timeline is firm: the first reviewable board must be ready within one month of contract start. Acceptance criteria • Editable EasyEDA Pro project file • Gerber, drill, and pick-and-place outputs • Complete BOM with manufacturer part numbers • PDF/PNG exports of schematic and board If you are confident with EasyEDA Pro and have a portfolio that proves it, I look forward to seeing your work.

Location: New Delhi Employment Type: Full-Time (On site) Department: R&D / Hardware Engineering Compensation: ₹4.30 LPA – ₹6.45LPA About Us We are an early-stage R&D startup developing safety-critical electronic systems and equipment for India's power, railway, and industrial infrastructure. We are a lean, high-ownership team where engineers directly shape products, processes, and the company's technical direction. Our systems are designed to operate reliably in the harshest environments and under the strictest regulatory scrutiny. Role Overview We are looking for a Hardware Engineer with strong expertise in core hardware technologies to lead hardware development. The candidate must be skilled in PCB design and have a solid understanding of hardware systems,...

For an R&D platform based on the SAM E54 Xplained PRO, we would like to make several (starting with 6) plug-in boards. The boards should be placed on one of the 3 headers of the Xplained. We have divided boards into 3 categories. Power supply, DCD converters (±48V or +40V or ±24V, 3V3, VREF 2.5, 1.25V, etc.). Driver OUTPUT User Interface and related For the first 4 boards (option 1 and 2), there are already schematics that can be used. These are already R&D PCBA files in use, but now we want to split them into partial boards as well. User Interface boards could be very simple, like a button, LED, header, screw terminal, etc. On request, new plug-in boards will need to be designed and created. All of this must be done with a program that is comp...

We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTROSCOPY (EIS) 4-wire (tetrapolar) configuration. Frequency sweep 100mHz to 200kHz. Phase angle resolution ≤ 0.1°. Impedance range 10Ω to 10MΩ. Precision analog front-end IC (SPI interface). Shielded cable connector for external probe (Lemo or circular DIN, IP44). 2. OPTICAL SPECTROSCOPY Hamamatsu C12880MA MEMS spectrometer (SPI). Multi-wavelength LED driver: 4 channels (405 / 530 / 625 / 850 nm), sequential, PWM-controlled, current-regulated ±1%. SMA905 fiber optic connector. This project centres on a single-board solution that brings electrical impedance spectroscopy and optical spectroscopy togethe...

I need an analog circuit designed from the ground up and then laid out on a production-ready PCB for a consumer-electronics product. The finished board must operate as a single, unified control unit that fits cleanly inside a dedicated enclosure, so component placement and overall footprint matter as much as the schematic itself. I need an integrated control panel which houses two subsystems. One is water pumping line and the second is uv disinfection line. The circuit diagram for both subsystems will be provided . Kindly provide an integrated one and a pcb design for the same.

I am looking for LTSpice expert who can deliver simulation result per project. It is not one time project and if you are good candidate, we can cooperate for a long time. Also, we have to work on slack. Budget: 20$/task, 2 tasks/every day. Please share your LTSpice experience.

I’m running a Teensy 4.1 that delivers a 0 – 3.3 V square wave at 80 kHz. For my signal-transmission stage I must boost that logic-level waveform to a clean +6 V amplitude, powered from an existing 13 V rail. Because the downstream chain mixes analog and digital circuitry, frequency stability, waveform accuracy, and strong noise immunity are all critical; edges need to stay sharp without ringing or overshoot, duty cycle must remain intact, and added jitter should be negligible. Here’s what I’d like from you: • A proven conversion topology (discrete driver, high-speed op-amp, gate driver, or any suitable approach) that takes 0 – 3.3 V in and produces a solid +6 V square wave at 80 kHz. • Schematic with full component values, part numbers, and a co...

Project Title: Design a Custom Jukebox Controller PCB (Drop-In Replacement) Project Overview I am developing a modern Linux-based digital jukebox platform and require a custom controller PCB to replace an obsolete legacy controller board. The original board is available and can be supplied to the successful freelancer for measurement and connector identification. The objective is not to copy the original electronics. The objective is to design a modern replacement board that fits the same physical location, uses the existing wiring harnesses and provides the functionality required by the new software. Requirements The replacement PCB must: * Match the physical dimensions of the existing board. * Use the same mounting hole locations. * Position connectors so the existing wiring harne...

We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTROSCOPY (EIS) 4-wire (tetrapolar) configuration. Frequency sweep 100mHz to 200kHz. Phase angle resolution ≤ 0.1°. Impedance range 10Ω to 10MΩ. Precision analog front-end IC (SPI interface). Shielded cable connector for external probe (Lemo or circular DIN, IP44). 2. OPTICAL SPECTROSCOPY Hamamatsu C12880MA MEMS spectrometer (SPI). Multi-wavelength LED driver: 4 channels (405 / 530 / 625 / 850 nm), sequential, PWM-controlled, current-regulated ±1%. SMA905 fiber optic connector. This project centres on a single-board solution that brings electrical impedance spectroscopy and optical spectroscopy togethe...

We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTROSCOPY (EIS) 4-wire (tetrapolar) configuration. Frequency sweep 100mHz to 200kHz. Phase angle resolution ≤ 0.1°. Impedance range 10Ω to 10MΩ. Precision analog front-end IC (SPI interface). Shielded cable connector for external probe (Lemo or circular DIN, IP44). 2. OPTICAL SPECTROSCOPY Hamamatsu C12880MA MEMS spectrometer (SPI). Multi-wavelength LED driver: 4 channels (405 / 530 / 625 / 850 nm), sequential, PWM-controlled, current-regulated ±1%. SMA905 fiber optic connector. This project centres on a single-board solution that brings electrical impedance spectroscopy and optical spectroscopy togethe...