I have that model for a circuit used for IGBTs firing
I want to energize A then B from microcontroller in a frequency about 50kHZ. with about 10 mA
I want microcontroller pin not to be loaded with more than 1 mA.
firstly I have intended to use "transistor as a switch" but I can not use it with common collector because the ground is common, so I have use it as common emmtier. but the problem is the output current is not greater than 3mA even if using Vcc for transistor with 12V and higher current gain models (2n2222, bc247...)
Also I can not use optocoupler as circuit frequency is high (about 50kHZ)
I am searching for a solution. Thanks in advance
I want to energize A then B from microcontroller in a frequency about 50kHZ. with about 10 mA
I want microcontroller pin not to be loaded with more than 1 mA.
firstly I have intended to use "transistor as a switch" but I can not use it with common collector because the ground is common, so I have use it as common emmtier. but the problem is the output current is not greater than 3mA even if using Vcc for transistor with 12V and higher current gain models (2n2222, bc247...)
Also I can not use optocoupler as circuit frequency is high (about 50kHZ)
I am searching for a solution. Thanks in advance
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