At 100mA, the voltage drop was 0.75V using a D42C8 transistor. Fig 3 shows how to connect ... If the power to the circuit is ‘teased,’ the latch can automatically turn itself on due to transistor ...

Figure 1a shows a latching circuit based on an optocoupler, IC 1. If the off switch remains closed, pressing the on switch powers the LED in the optocoupler. Thus, the transistor in IC 1 turns on. You ...

[Kevin Darrah] wanted to make a simple 3.3V regulator without using an integrated circuit. He wound up using two common NPN transistors and 4 1K resistors. The circuit isn’t going to beat out a ...

Conventional wisdom says you can’t build a flip-flop with just one transistor, but here we are. [roelh] has built a flip-flop circuit using only one transistor and some bizarre logic that’s ...

In this Idea for Design: the Soft-start capacitor's discharge can be used as a trigger for a latch circuit in order to ... The latch transistors Q1 and Q2 feed base current to each other and ...

A transistor is a key component in electronics ... on until the power is turned off. This makes it a latching device, ideal for alarm circuits. A thyristor with gate (G) anode (A) and cathode ...