What is an open collector? - Electrical Engineering Stack Exchange
2019年12月26日 · Open-collector is a type of switched load driver circuit, along with open-emitter and push-pull. The terms 'open-collector' and 'open-emitter' are used when the switching …
Why do they usually make comparators open collector?
An open collector output is simple and flexible but relatively slow compared to other logic outputs. Since most comparators are slow, it is OK to use open collector outputs for them. Fast …
Open Drain vs Open Collector - Electrical Engineering Stack …
2012年8月4日 · An open collector will have a voltage drop higher than that. (This device even specifies a maximum low level input voltage of 0 V, which is simply impossible.) note Apart …
transistors - Proper use of open collector to switch an output ...
2020年3月4日 · You actually do NOT need open collector output to drive the circuit of this VMA406 module, it does already contain open-collector circuit for you. You can connect GPIO …
digital logic - Why are open-drain outputs needed? - Electrical ...
2021年4月6日 · Today, open-collector shows up with some slow buses like I2C and SMBus, where its benefit of non-clashing drivers and known idle state makes implementing a controller …
Understanding Proper Implementation Of Open-Collector
2016年9月3日 · For open collector output logic gates the logic function is realized including the polarity inversion from the open collector. So in your second example the NAND gate really …
transistors - TTL, Totem Pole vs. Open Collector Output - Electrical ...
2018年3月21日 · Totem Pole output drives the output high and low. Open collector will only pull the output low; it does not drive the output high, only releases the output to float. Multiple open …
Open-collector current measurement - Electrical Engineering Stack …
2015年12月16日 · Here is an example of a short-circuit proof open-collector output: simulate this circuit – Schematic created using CircuitLab The transistor types would have to be modified to …
open collector - What's the difference between a 74LS05 hex …
2015年3月14日 · As you pointed out, the 74LS05 has "open-collector" outputs and the 74LS04 does not. There are two general types of outputs in digital circuitry: push-pull and open …
How can I interface a Raspberry PI GPIO to an open collector …
2017年7月14日 · The PI supports pull up/down configurations for the GPIO pins, but I don't see anything about an open-collector configuration. With my current setup, I am able to read data …