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kevarek

A guy interrested in embedded systems, digital and analog electronic. RC models, bioelectronics, CNC...

Czech Reublic

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This user joined on 02/05/2015.

My Projects

Easy to build but very capable and handy DIY solder paste dispenser built mostly from cheap Ebay components and modules.

Low cost solder paste dispenser

kevarek kevarek

Precision programmable dual channel power supply 1-25V, 0-2A.

Advanced bench power supply

kevarek kevarek

Very simple +-50 A isolated current sensor with 1.5 MHz bandwidth based on Anisotropic Magneto Resistive sensor technology (MCA1101-50-3).

Isolated +-50 A current sensor

kevarek kevarek

Small spot welder with maximum discharge energy 75 Ws (J).

Capacitive discharge spot welder

kevarek kevarek

Small battery operated LCR meter and PCB short circuit detector.

Handy LCR meter

kevarek kevarek

Home made two channel 5uH LISN (Line impedance stabilization network) for conducted emission measurements up to 60V systems.

DIY CISPR-25 LISN

kevarek kevarek

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Projects I Like & Follow

The 2016 Hackaday Prize

Hobby brushless motors are incredibly cheap and powerful. However we need a way to make robots out of them. ODrive is that way.

ODrive - High performance motor control

Hackaday Prize 2019

High Power, High Performance 400V 300A 100+kW Motor Controller fully compatible with VESC®

Axiom: 100+kW Motor Controller

Hackaday Prize 2019

The Probe-Scope is an open source 60MHz 250Msps oscilloscope probe with all guts built right in, that plugs directly into your PC via USB

60MHz Bandwidth 250Msps Probe-Scope

A DIY oscilloscope probe to dig small differential signals embedded in high common mode voltages.

A 10X 100MHz Differential Probe

The 2016 Hackaday Prize

Spectrophotometer design with a sensitive detector, bright light source and a sample holder. Easily and inexpensively built.

Spectrophotometer

Hackaday Prize 2020

SOLO is a Motor Controller designed to easily run most types of electrical motors, DC, BLDC, PMSM and ACIM. it's easy to use and versatile.

SOLO, A Motor Controller for All Motors

No, not Electronic Dance Music - It's an Electro-Discharge Machine for PCB prototyping

Not Your Father's EDM

Jarrett Jarrett

Hackaday Prize 2019

Small magic pcb for moving miniature cars, trains or satellites :-)

Ant highway - linear motor for micro cars

The Zytek drivetrain has a built in inverter with proprietary CAN interface. This project will replace just the microcontroller board.

Hacking the Zytek 55kW EV drivetrain

An active scope probe with high-ish bandwidth and very low input capacitance

DIY 1.3 GHz FET Probe

Open source, compact, high performance, FOC based BLDC motor control

moteus brushless controller

Easily document cables and wiring harnesses

WireViz

I needed a differential probe for BLDC motor ESC development and adapted Bud's design for my needs

A 1x, 100 MHz, 35 V common mode diff probe

A small, cheap, light-weight preamplifier for student use in electrophysiology labs. Performance is quite good.

Small physiological preamplifier

Wide range impedance meter with calibration, compensation and auto-ranging

Precision impedance meter asdf_lcr1

2021 Hackaday Prize

100 MHz differential probe for oscilloscopes, with modular accessories to suit both high and low voltage use.

Modular differential probe

Petteri Aimonen

Simple probe for sniffing electric field on PCBs.

Simple E-field probe

MS-BOSS MS-BOSS

Simple oscilloscope differential probe with 20MHz bandwidth and x10, x100 voltage ratio.

Differential Probe 20MHz

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