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MPC5634M with high power consumption,How to solve?

Question asked by liu jian on Mar 4, 2016
Latest reply on Mar 11, 2016 by Lukas Zadrapa

(1) please tell me ,the voltage  of Q2 , B and E ?

and  i find  the  graphics of the base of the Q2   is Sawtooth wave.

 

 

 

 

 

 

 

 

(2)R18 C20, R25C28   What is their role?

(3)C39,How to choose the capacitor materials?

(4)When I put the two removed after the chip ,power consumption become normal.

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