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Hello all,
I have prepared following circuit and I have troubles with MOSFET driving.
Circuit info:
VDD = 2.8V (two fully charged NiMH AA batteries)
NE555N replaced by ST555CN (CMOS, from 2V power supply)
IRLZ44Z replaced by IRL3705N
Q2 MOSFET activated 1-2 times per minute for 0.1 second...
Thanks.
I found article about monostable 555 usage and it might work.
But I want avoid extra IC (I plan battery powered device) and I have following idea (please see attached circuit).
Idea is simple. Charge capacitor if schmitt trigger low (-1V) and discharge capacitor if schmitt trigger...
Hello,
I have made a circuit (strain gauge amplifier) - please see attached circuit.
Non-inverting Schmitt trigger attached to the out of instrumentation amplifier works fine and generates signal (+2V at "high" state, and -1V at "low" state).
So. Theoretically if we attach proper NPN...
I have used 0.1% tolerance resistors.
Question - it is possible to avoid possible excitation ripple using battery supply (such as Lithium coin cells CR3032)?
I will play a little bit with circuit... and if it won't work - i will use InAmp.
Hello!
I am beginner in electronics and i try to make instrumental amplifier for my strain gauge.
I have already made following circuit based on LM358, but i am not sure if it is OK.
I apply multimeter between Vref (LM336) and output and see voltage jumping up and down - from 4mV to 1.2V...
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