lxcpku
Junior Member level 3
Papers from JSSC says input resistance at terminal + and - is low ,i donot quite understand why ? and i think the input resistance depends on the current through the transistor,since it is diode. However , this ciruit is used in LDO,so the current should not be too large,for example:1uA below),then the input resistance at terminal is still low? and why ? could anybody give me exact expression of input resistance at terminal + or - ? thx a lot for your sincere help
btw:what magnitude of this input resistance? like 100k or 1k and so forth,since the pole at this terminal may affect circuit stability, i have to know the probable value of the input resistance
anyone could help me ? thx a lot
btw:what magnitude of this input resistance? like 100k or 1k and so forth,since the pole at this terminal may affect circuit stability, i have to know the probable value of the input resistance
anyone could help me ? thx a lot