Why can't my serial extension cable be used when connected to the RS232 converter on the computer, but it can be used when it is directly connected to the host serial port without the extension cable?...
[p=null, 2, left]When testing a power supply, how to use the constant current and constant resistance load modes of an electronic load. When using the constant current (CC) mode of an electronic load ...
(1) The transistor + pull-up resistor method is a bipolar transistor or MOSFET, with a pull-up resistor connected to the positive power supply at the C/D pole. The input level is very flexible, and th...