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JFET Current Source: Derivation & Preselection
Design of a JFET current source with preselection and an interactive JavaScript calculator.
Read article →Need the advice of a senior development engineer with a wealth of experience?
Welcome to Levolta
Erich Lerch – Engineering as a Calling
Since my youth, I have been fascinated by technology and the art of "making". Today, I look back on over 40 years of experience in electronics development.
Read full CV →Engineering Excellence through Passion & Experience
Precision in Series
From 4-bit assembler for Victorinox to mass production of several hundred thousand units.
Safety & Standards
Expertise in FDA standards and EMC approvals for medical diagnostics (Roche).
High-End Sensing
World-leading variometer technology with a precision of less than 2cm/s for aviation.
Services at a Glance
Consulting ▼
Regulatory support: Functional Safety, EMC, RED for EU and USA.
- Approvals (EU, USA, Global)
- Patent investigations
- EMC Design & Remediation
- System Design
- Li-Ion Battery Technology
- Functional Safety
Development ▼
System design, circuit development, and sourcing.
- Sensors: Pressure, Force, Torque, Magnetic
- Circuit Design: Analog, Digital, MCU
- Energy Harvesting & IoT
- Power Electronics & Motor Control
- Lowest Power Design
- Wireless: BLE, ANT, 868/433MHz
Education ▼
Transferring technical expertise
- EMC Specialist Courses
- System Engineering
- Functional Safety Training
- Drive & Motion Technology
- General Electrical Engineering
- Electronics Basics for Students
"Erich Lerch has a wealth of knowledge and experience. Thanks to this, combined with his extraordinary eagerness to learn and a rock-solid engineering ethos, he has repeatedly helped us solve problems quickly. Invaluable service."
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