Latch Circuits

Asynchronous Circuit Latches Safely: 04/28/94 EDN-Design Ideas

Continuity Tester, Latching: Awesome tester!

Eliminate Latching Current Limit In Power Supplies : 08/05/02 Electronic Design - Ideas for Design / Most modern power-supply control ICs offer built-in over current or short-circuit protection. While some overcurrent-protection schemes are latching, others are nonlatching.

Latching light detector is frugal with power and parts: 09/26/2002  EDN - Design Ideas / This idea demonstrates three uses for the humble LED. The circuit in Figure 1a forms a simple light detector that latches and turns on an LED when the ambient light exceeds a preset limit determined by potentiometer P1. LED D1 is both the indicator.

Latching Regulator Prevents Deep Discharge: 03/16/95 EDN-Design Ideas

Simple Circuit Prevents Processor Latch Up: 03/04/99 EDN-Design Ideas / PDF contains multiple circuits - scroll to find this circuit.

Solid State Relay Saves Battery's Life: 09/01/94 EDN-Design Ideas

Transistor Latch improves on/off Circuitry: 11/23/00 EDN-Design Ideas / PDF contains multiple circuits - scroll to find this circuit.

Transistors offer thermal protection for controller: 07/19/2001 EDN - Design Ideas / When a switch-mode power-supply controller, such as On Semiconductor's NCP1200, operates at a high ambient temperature, you should protect the entire power supply against lethal thermal runaway. The NCP1200 operates directly from the power mains without an auxiliary winding; therefore, the die in the IC dissipates power.