EDA_hg81
Advanced Member level 2
The purpose of this circuit is for shifting the voltage level from logic level to +1.5V and -3V.
When the base of NPN receives -7V: NPN is off and PNP is on, the output is around +7V.
But when the base of NPN receives -2V: NPN is on and PNP is off, the output is around +12V.
Where this +12V comes from?
Thanks you.
When the base of NPN receives -7V: NPN is off and PNP is on, the output is around +7V.
But when the base of NPN receives -2V: NPN is on and PNP is off, the output is around +12V.
Where this +12V comes from?
Thanks you.
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