ic power-supply pin notions
| NPN BJT[b] | N-FET | AC/DC[c] | DC | DC | |||
|---|---|---|---|---|---|---|---|
| Positive supply voltage | VCC/VBB | VDD | V+ | VS+ | VIN | VDD | VA |
| Negative supply voltage | VEE | VSS | V− | VS− | |||
| Ground | GND | GND | 0 | 0 | GND | GND | GND |
Vbb: base supply voltage, 基极电压
Vcc: Collector supply voltage, 集电极电压
Vee: Emitter supply, 发射极电压
Vdd: Drain supply, 漏极电压
Vss: source supply. 源极电压 （N-FET载流子为电子，源极为低电平）
VA : voltage for analog devices
GND: ground 接地
三极管
BJT： bipolar junction transistor 双极性结型晶体管（俗称：三极管）。 发射极掺杂高。
NPN BJT: NPN型三极管（集电极和发射极都是富电子）
ref: 双极性晶体管 - 维基百科，自由的百科全书 https://zh.wikipedia.org/wiki/%E5%8F%8C%E6%9E%81%E6%80%A7%E6%99%B6%E4%BD%93%E7%AE%A1
ref:
what is Vcc, Vss, Vdd & Vee? | All About Circuits
https://forum.allaboutcircuits.com/threads/what-is-vcc-vss-vdd-vee.28782/#:~:text=Vcc%20%3D%20Collector%20supply%20voltage%2C%20Vee,device%20and%20the%20circuit%20configuration.
IC power-supply pin - Wikipedia
https://en.wikipedia.org/wiki/IC_power-supply_pin
Bipolar junction transistor - Wikipedia
https://en.wikipedia.org/wiki/Bipolar_junction_transistor
