Electronics, PCB Design and PCB Layout Daycounter, Inc.
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Custom Firmware, Electronics Design, and PCB Layout

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Capabilities

Electronics Design
Firmware Development
Software Development
Embedded Design
PCB Layout
Digital Signal Processing (DSP)
Reverse Engineering
Prototyping
Device Driver Development
VHDL
Motor Controllers
Microcontrollers
Data Acquisition Systems
Palm OS Software
Windows CE Software
Pocket PC Software
Design for Manufacturing
Through Hole to Surface Mount (SMT) Conversion 
Microchip PIC Consultant
MSP430 Development
DSP56 Development
RoHs Redesign
Design for USB

 

Inverse Voltage Control

See our other Circuits.

This circuit creates a voltage inversely proportional to a variable resistance.

The PNP transistor is turned on to saturation.   So the voltage through the collector is:

IR1= (VP-VBE)/(R1+R2)

VControl= R3(VP-VBE)/(R1+R2)

 

Do you need help with an electronics design?  Daycounter provides contract electronics design services. Contact us to give you a quote on your electronics design project.

 

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