Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

about circuit questions

Status
Not open for further replies.
A

aarviii

Newbie level 6
Joined
Apr 3, 2013
Messages
12
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,355
is it possible to have a circuit using transistor as a switch that my input as a sensor is weight and output will be LED as light. and when i put the object to the sensor, the heavier object the more the LED will light? and one more question. what IC can i substitute to 3140?
 

when you are using transistor as a switch your transistor acts as a switch- that means either it will be ON or OFF- so u cant do it
 

All you need is a substance called pressure sensor and an opamp. Try an opamp non invertor. Make amplification some 10 time or 100.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top