DESCRIPTION. The LM and the LM are general purpose dual operational amplifiers. The two amplifiers share a common bias network and power. CC Datasheet, CC PDF, UPCC. Part Number, CC. Manufacturer, NEC. Short Description, UPCC. Long Description, www. CC UPCC Components datasheet pdf data sheet FREE from Datasheet (data sheet) search for integrated circuits (ic).

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I have it working. I am trying to fix my Tek scope power -8 and power supply. Actually the voltage measurement I would like you to make is the voltage across the terminals of the capacitor. I went out a purchased a couple of op amps from Radio Shack and built a comparator like the first one on this page. If you imagine that the load on the -8V output increases then the -8volt output would drop slightly datassheet 0v.

Nov 13, 5. Your dattasheet or email address: Can we use a tristate buffer in place of voltage level shifter? I really do not care if one of these is the best choice. Nov 13, 1. I can’t seem to find a datasheet for a CC, but the pinouts on the schematic agree with the above opamps. This causes the output of the opamp to go positive which drives the base of transistor Q which in turns drives the base of Q positive.

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The voltage you measured across C was around 15 volts.

Nov 13, 2. Can I use a flyback transformer in a forward topology? Jan 28, 9, Can U use 2 transistors in place of a relay to switch 2 different voltages Posted by icadj in datashewt Bottom line, compare the datasheets of the op amps for compatability. Spinaker, You will notice that I have merged the newer post with the older post since the second thread was a continuation of the first.

CC Datasheet PDF –

Nov 13, Yes, my password is: Nov 13, 4. You placed your DVM probes on the negative and positive terminals of the capacitor and the voltages you posted are the ones you read. Quote of the day. Discussion dztasheet ‘ General Electronics Chat ‘ started by spinnakerNov 13, Could this finally be the dawn of room-temperature superconductors?

Do you already have an account? I started reviewing the lessons on op amps on this site because I think the problem with my Tek scope power supply is a bad op amp.

Nov 13, 8. Nov 13, 3.

C1458C Datasheet PDF

Nov 16, 1, Nov 13, 7. C145c trick to the -8volt regulator stage is that Q is acting to control the positive-most end of the 15V secondary transformer winding so that it is exactly 7 volts positive when measured with respect to ground. Posted by Gamedojo in forum: That can be remedied.


Apr 5, 18, 3, No, create an account now. Just so that I am clear. It is a CC. I have included the PS schematic below. Here are my voltage readings for the -8 section. Motion-Activated Trail Camera In this Teardown Tuesday, we are going to take a look at the inner workings of a trail camera!

Posted by spidermanIIII in forum: As the -8volts drops the positive input to the opamp begins to go positive. You May Also Like: I could probably ramp the voltages up to 15 VDC if that is recommended.

A Non-Invasive Glucose Sensor Researchers believe that sweaty armpits may be the answer to both detecting and controlling diabetes. Nov 13, 9. What voltage do you measure across capactors C and C?

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You might find that one or more of the transistors connected to the output is shorted. In the meantime, I will use the values you have measured. Nov 13, 6. But would want to run ti by the folks here anyway. I am not great at reading datasheets. I suspect dqtasheet the op amp in the circuit is bad.