Innovative Open-Source Electronics
Join the Innovatia Transistor Parameter Analyzer (TPA202) project; build a low-cost curve tracer.
The TPA202 prototype (shown above) has been completed and meets specifications. Join the project to build one and measure transistor beta and other parameters. This is a simple non-microcontroller instrument with only one trimpot adjustment. It has an accuracy of 1 to 3 %, depending on your choice of op-amps. It has INPut and OUTput ports and a DVM that measures the voltages and currents at each port. Output-port voltage (VCE) is 35 V full-scale and the current (IB) range of both ports is 100nA fs to 100 mA fs.
The TPA202 project is a good introduction to two-port analyzer (TPA) circuits and design considerations. It results in a quite useful bench measurement instrument. Join the TPA202 project and request a free emailed instruction manual from which to build a prototype. Make a request for a circuit-board and you will be notified when they are available.
Join the Innovatia project to build a Floating Differential Source, an
Instrument for testing amplifier common-mode rejection and high-side or floating circuitry
The Floating Differential Source (FDS) consists of two voltage sources and a current source. They can be configured in two modes, as shown above. The FDS is a single-board instrument, uses an Atmel AVR microcontroller, and has two custom magnetic transductors in its power supply. The supply is like that of other kinds of two-port analyzers, with multiple floating sources. The FDS has a built-in 4-digit (12500 count) DVM that is used to set output voltages from the common-mode (or grounded) and the floating sources. The FDS can also be controlled through its serial port. It has a typical common-mode rejection of 4 decades (80 dB). FDS construction cost is about $100 US. A few limited-edition prototypes are available from Innovatia for $350 US. Input power is 12 V dc, 1 A. Join the project to build your own FDS and request the free manual. Product suppliers (manufacturers, sellers): inquire about one-time open-source licensing of FDS engineering-level designware
Innovatia Seeks Manufacturers or Entrepreneurs Seeking Product Designs
Innovatia as a design laboratory is seeking suppliers who manufacture and sell electronics measurement instruments, power conversion, and motion control products. Innovatia offers concept-proven to manufacture-ready designs as designware. Development status is given on this website. Please inquire via email about any of the design projects or designware.
Innovatia Website, JAN14 Version