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Contact Bounce Suppression Circuits
Last Updated on: Thursday, April 07, 2016 01:01 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Circuit Removes Relay-Contact Bounce  -  11/27/03  EDN Design Idea   Advances in semiconductor technology have allowed ICs to replace many mechanical relays, but relays still dominate in high-current circuits that must stand off high voltages of arbitrary polarity. Contact bounce in those relays, ho. . .  [by Shyam Sunder Tiwari, IGCAR, Kalpakkam, India]

Circuit Simulates Contact Bounce  -  05/08/97 EDN Design Idea   The circuit in Figure 1a simulates contact bounce of electromechanically and mechanically actuated electrical contacts. The circuit generates contact-bounce pulses for contact closing and opening. You can easily program the conta. . .  [by John Guy, Maxim Integrated Products, Sunnyvale, CA]

Debouncing networks make reliable selector  -  06/05/97 EDN Design Idea   The expandable selector in Figure 1 consists of six switches, a HEX D-type flip-flop and two comparators with hysteresis and debouncing networks. The debouncing networks ensure that only one output of IC2 is high at any time, and you can expand this circuit using more switches and D-type flip-flops. . . .  [by W Dijkstra, Waalre, The Netherlands]

Pushbutton Switch Debouncer  -  This circuit will remove the transient spikes and contact bounces from a non-latching push button switch. . .  [Circuit Design by Andy Collison]

Remove Relay-Contact Bounce  -  11/27/03  EDN Design Idea   Advances in semiconductor technology have allowed ICs to replace many mechanical relays, but relays still dominate in high-current circuits that must stand off high voltages of arbitrary polarity. Contact bounce in those relays, ho. . .  [by Shyam Sunder Tiwari, IGCAR, Kalpakkam, India]

Simulate Contact Bounce  -  05/08/97 EDN Design Idea   The circuit in Figure 1a simulates contact bounce of electromechanically and mechanically actuated electrical contacts. The circuit generates contact-bounce pulses for contact closing and opening. You can easily program the conta. . .  [by John Guy, Maxim Integrated Products, Sunnyvale, CA]

Switch debouncer isolates input and output  -  04/27/00 EDN Design Idea   Modern programmable-logic controllers (PLCs) for automated process-control systems have either 16 or 32 inputs and accept ac voltages of 24 to 120V. A single circuit (a relay for isolation and an RC network with a Schmitt trigger. . .  [by Deign[by Phill Leyva, Maxim Integrated Products, Sunnyvale, CA ]

Switch debouncer uses only one gate  -  05/30/02  EDN Design Idea   The circuit in Figure 1 produces a single debounced pulse each time you press S1. Moreover, the circuit uses only logic power from the remote pull-up resistor, R2. You can use the circuit to detect when a key is pressed in a nonene. . .  [by Steven Robertson, Anritsu Co, Morgan Hill, CA]

Switch De-bouncer Using a 555 Taken from Forrest Mims Mini Notebook.  -  Schematic only, no text included. . .  


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