Tag Archives: Short Circuit Protection

Amplifiers and Loudspeakers Protector with IC LM393

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The short circuit proof outputs of amplifiers and speakers, throw some interesting elements, such as the isolation of the speakers from the exit of the amplifier, when is a constant tension presented abandoned or if the heat sink temperature rises excessively, the simultaneous and delayed connecting speakers to the amplifier… Read more »

Short Circuit Protection For Balanced Supply Rails

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This circuit was designed to protect a dual rail power supply from shorts across the two rails. It uses an optocoupler to monitor each supply rail, with the internal LEDs powered from ZD2 and ZD3 and the associated resistors. While the LEDs are on, the optocoupler’s internal transistors are both… Read more »

Simple Short-Circuit Detection

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This circuit is suitable in every situation where over-current protection is required. Here we give an example from the model train world. Every seasoned model train enthusiast knows that there is nothing worse than having to find the cause of a short-circuit. On a small model railway with one locomotive… Read more »

Model Railway Short-Circuit Beeper

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Short circuits in the tracks, points or wiring are almost inevitable when building or operating a model railway. Although transformers for model systems must be protected against short circuits by built-in bimetallic switches, the response time of such switches is so long that is not possible to immediately localise a… Read more »

5V DC Regulated Power Supply with Short Circuit Protection

This is the circuit diagram of 5V DC regulated power supply which featured with short circuit protection system. There are 2 kind of output that are regulated 5V DC with short circuit protection and without circuit protection. The main circuit is protected from any damage due to short-circuit in the… Read more »

Low Voltage Regulators with Short Circuit Protection

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These Low Voltage regulators with short circuit protection can provide 6, 7.5, and 9 V from an automobile battery supply of 13.5 V nominal, however, they will function just as well if connected to a smoothed dc output from a transformer/rectifier circuit. Two types are shown for both positive and… Read more »

Protecting L6203 DMOS Full Bridge Driver from Short Circuit

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Below we provide information about adding a circuitry to protect the L6203 DMOS Full Bridge Driver from Short Circuit. L6203 is a full bridge driver which combines isolated DMOS power transistors with CMOS and Bipolar circuits on the same chip and it is easy for the L6203 IC to have… Read more »