A power supply, just like any other electronic circuit, can fail. Overvoltage protection requires few parts and is effective and relatively inexpensive insurance for costly electronics systems.

To meet the protection needs of sensitive circuits, overvoltage “crowbar” methods are often used. Fig. 1 shows the normal crowbar arrangement.

The circuit in Figure 4 requires only a couple of external components to use an SSR for output-overvoltage protection. Rising overvoltage turns off both transistors in IC 2 , interrupting current flow ...

Crowbar vs. Clamping These terms are often used to describe how overvoltage protection devices function during a transient event. A crowbar device reduces the voltage below the operating voltage of ...

80V Low IQ Ideal Diode Controllers from Diodes Incorporated Simplify Reverse Battery Polarity and Overvoltage Protection in Modern Automotive Architectures ...

Toshiba releases a new eFuse IC for repeated use that support functions to protect power line circuits.