Mohn Use a ohm resistor for Rsense and set the voltage divider to give you 0. To avoid these issues, you can change your voltage divider to use a voltage below the guaranteed max input voltage. Quote of the day. By that logic my base current, 3. Dec 28, 5. Dec 28, 9.
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It should not be used a design parameter for several reasons. By that logic my base current, 3. I want to ensure 4mA collector current regardless of my load. Why does your schematic drawing software produce backwards negative white lines on a black background instead of a normal positive image??
Dc datasheft Posted by Yuvaloh1 in forum: DC current gain Posted by qitara in forum: AC gain confusion Posted by vustudent in forum: Use a ohm resistor for Rsense and set the voltage divider to give you 0. Dec 27, 3. I am trying to setup a constant current source using a 2n and a Motorolla LMN. Dec 28, 6. How can I implement this here?
Could someone explain this section to me? That will also help with the max output voltage. Mar 14, 20, 5, Dec 28, 8. You can omit the base resistor. When the voltage across my sense resistor exceeds 4V, 4mA total current, the LMN will output low unbiasing the 2n Your beta assumptions are wrong.
No, create an account now. Here is a screen shot of the circuit, an explanation of my rationale, and the problem I am having. Sep satasheet, The opamp and its negative feedback will automatically adjust Q1 base current such that the voltage across sense resistor R5 is identical to the voltage across R4. Your name or email address: How does this factor in?
An easier to read lmb To avoid these issues, you can change your voltage divider to use a voltage below the guaranteed max input voltage.
Thank you all so much for any input. What exactly am I screwing up here? Quote of the day. Yes, my password is: Dec 28, 7. As it stands right now, I get 2. I know I may have to implement some hysteresis into this circuit.
Its purpose is to protect Q1 from too much base current, which is not a problem in this circuit. Jun 29, 8.
LM356N View Datasheet(PDF) - FCISemiconductor
Shaktikora I know I may have to implement some hysteresis into this circuit. AC gain confusion Posted by vustudent in forum: Do you already have an account? Yes, my password is: My Rationale Using the datasheet, to the best of my ability, it looks like my DC current gain would be Both serial connections datashewt USB to serial conversion connections are covered. To avoid these issues, you can change your voltage divider to use a voltage below the guaranteed max input voltage. An easier to read schematic: No, create an account now.
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