RFQ/BOM 0 Iniciar sesión / Registro

Selecciona tu ubicación

imagen de usuario

Question about constant current source.

Hardware design
julio 15, 2020 by Hanna 344

Ask you, how to understand this circuit, what role does the previous Q1 transistor play?

电路图

todos los comentarios

user image

Phoenix Publicado en July 15, 2020

From the circuit point of view, it is similar to that of the amplifier to adjust the input current of the base of Q2. But is there any practical application of this circuit?

0
user image

Kira Publicado en July 15, 2020

If you use 1V voltage is wrong, (1-0.7)/45.3=6ma, but your display is only 3ma, indicating that the voltage is not enough.

0
user image

Alina Publicado en July 15, 2020

This circuit cannot complete the function of constant current, and changes greatly when the voltage changes.

0

Escribe una respuesta

Necesitas iniciar sesión para responder. Iniciar sesión | Registro