Pulse Operated Latching Relays

Pulse Operated Latching Relays

Pulse operated latching relays are specialized types of electrical relays that are designed to maintain their state even after the input signal has been removed. These relays use a unique latching mechanism that allows them to remain in either an energized or de-energized state until a new pulse is applied to the input. This makes them ideal for applications where power consumption needs to be minimized, or where a specific state needs to be maintained for an extended period of time. The latching mechanism used in pulse operated latching relays typically consists of two coils and a magnetic core. When a pulse is applied to one of the coils, it creates a magnetic field that pulls the core in one direction, causing the relay to switch to the energized state. Once the pulse is removed, the magnetic field collapses, but the core remains in its new position due to the residual magnetism. To switch the relay back to the de-energized state, a pulse is applied to the other coil, which creates a magnetic field that pulls the core in the opposite direction. Pulse operated latching relays are commonly used in a variety of applications, including telecommunications, industrial automation, and power management systems. They are particularly useful in applications where power consumption is a concern, as they only require a pulse of energy to switch states and do not require a continuous supply of power to maintain their state.

electrical relays, latching mechanism, magnetic core, energized state, de-energized state

— Mark Anderson

CITATION : "Mark Anderson. 'Pulse Operated Latching Relays.' Design+Encyclopedia. https://design-encyclopedia.com/define/pulse-operated-latching-relays?E=391100 (Accessed on October 14, 2026)"