OC OD output voltage divider calculator

extends the ::  LM393 CLM TEST @ Tuesday, March 19, 2019

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Voltage Divider - Calculator

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Ø +Vcc │ ┌─┴─┐ │ │ │ R1│ │ │ └─┬─┘ OC ┌────────┐ │ .────┤ R3 ├────█────► Vout │ / └────────┘ │ COMP ►────│• ┌─┴─┐ │ \ │ │ _\/ │ R2│ │ │ │ │ └─┬─┘ │ │ ─┴─ ─┴─ GND

Param.	Input	Set	Value	Verif.
Corr. :				.
ISNK :				.
VCC :				.
VTH :				.
ΔV :				.
UHI = VTH + ΔV :
ULO = VTH - ΔV :
Integrity of the entered data :
R3 (Ω) = ROC = RSNK :	.	.		.
K = R2/R0 = : = VCC / ULO - 1 VCC / UHI - 1		.	.
R2 (Ω) = RLO = = R3 · ( K - 1 ) :	.	.		.
R0 = R2||R3 :		.	.	.
R1 (Ω) = RHI :	.	.		.

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[Eop]

Determining a near to the exact HFE value

Not providing how did we got there -- the I_C I_E are best to be kept below-equal to the 1.5mA and less

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more ::

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utilities ::

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Bipolar Passgate Experiment

There are obviously more tests to be done to evaluate the thing . . . but so far there are 2 of them :

resistive load + sample and hold ::

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Cap.-meter core by target type

"ceramic"

"polar"

both types need possible additional timing or/and displaying(+conversion4) circuitry -- that is not at the scope of this post - - - - we only examine the possible to achieve precision here

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Confirming the web cap-meter principle

the thing is theoretically capable of more precise function that it's claimed but in practice . . . i don't think it can do even twice the claimed 4%

. . . there are 3 to 6 constants that have to be set correct at the 10-th of a % precision -- but they are valid at a specific device working temperature + don't with-count / cancel-out the variation of parasitic properties of different capacitors

experiment ::

the diodes have a logarithmic voltage --or-- apx. Δi.D ~ exp(U.D) ... also the ΔU.c ~ exp(t) ...
... thus Δi.D ~ exp(exp(t)) --or-- if the U.c rises the frequency (Δi.D) must rise exponentially to provide ?? more linear U.c scale → the meter should run at constant outp voltage and varing frequency (4 starting ...)

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[Eop]