.....

[pic16]

Did you think it work? i have some ICL7107 in my toolbox

The datasheet contains information on wiring it. And of course, make sure you have a temperature sensor too, and a potentiometer should you need to adjust the reference voltage.

the BC108 already was a temperature sensor

[pic16]

did there any method to invert the output voltage at(pin 6) become decrease, when the environment temperature going high??

[Brian Griffin]

Did you think it work? i have some ICL7107 in my toolbox

The datasheet contains information on wiring it. And of course, make sure you have a temperature sensor too, and a potentiometer should you need to adjust the reference voltage.

the BC108 already was a temperature sensor

The BC108 is a general purpose transistor.

In the circuit, it is modified to be a temperature sensor, however, the accuracy of the sensor can be very questionable.

[pic16]

it's ok... i just doing for fun..
did there any method to invert the output voltage at(pin 6) become decrease, when the environment temperature going high??

[robosang]

Brian, good sharing, never know there is this chip, thanks! I learn something new today

[Brian Griffin]

Brian, good sharing, never know there is this chip, thanks! I learn something new today

Oh you should thank ABSF - he is the first one who reminded us about that chip.

I learnt that chip during undergraduate days, in Process Control classes, like some few years ago.

[yonghui]

hi,

the pair of BJT junction is used as Bandgap voltage reference in analog design, which compensate for the temperature changes in surroundings to keep the output voltage fixed. but the changes of the VBE of BJT, i think is non linear.

the Opamp is used as the amplifier in this circuit. op amp can be used as inverting and non inverting depends on how the input is biased. so mayb u can search how opamp is biased to be inverting and non inverting circuit.


yh

[pic16]

hi,

the pair of BJT junction is used as Bandgap voltage reference in analog design, which compensate for the temperature changes in surroundings to keep the output voltage fixed. but the changes of the VBE of BJT, i think is non linear.

the Opamp is used as the amplifier in this circuit. op amp can be used as inverting and non inverting depends on how the input is biased. so mayb u can search how opamp is biased to be inverting and non inverting circuit.


yh

hi,
are there any IC/circuit could make the voltage's increasing/decreasing to become "invert" ?
ex:
my initial voltage is 5V, i increase it to 9V(5v to 9v, increase 4v)
so i want the "special iC/circuit"output aslo initial voltage is 5V but decrease to 1V(5v decrease to 1v, decrease 4v)


any speacial ic can do that

[yonghui]

hi,

pls refer to the op Amp biasing as shown in the link on how to use the same op amp as inverting and non inverting amplifier.

http://www.technologystudent.com/elec1/opamp2.htm



yh

[yonghui]

hi,

pls refer to the op Amp biasing as shown in the link on how to use the same op amp as inverting and non inverting amplifier.

http://www.technologystudent.com/elec1/opamp2.htm



yh