Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 40,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


  Safety / Protection Circuits, Page 5
Safety / Protection:  #-B     C-D     E-K    L-N     O-R      S      T-V
Last Updated on: Wednesday, November 29, 2017 05:39 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
[GlobalSpec-AD/ad-smSQ-ihsGS.htm]
Open-collector output provides fail-safe operation -  4-Sep-03 Issue of EDN  It is common practice to use digital open-collector outputs for control units in industrial applications. Using these outputs, you can switch loads, such as relays, lamps, solenoids, and heaters. One possible problem inherent to this type of output stage is a short circuit from the output to the supply voltage (often, 24V].... [Design Idea by Susanne Nell, Breitenfurt, Austria]
Output Power Limiter -  Just the thing if you want to limit amplifier power to something "sensible"  (circuit added 6/07)
Over Voltage Protection -  Safety devices like fuses provide protection against excess current, but do nothing for transients and short duration spikes of high voltahe on the power supply lines.  This circuit uses the "crowbar" method and provides fast protection against transient voltage spikes(Circuit design by Andy Collison added 07/07/07) [Andy Collison]
Over Voltage Protection for the ADG5XXA Multiplexer Series -  AN-249 Analog Devices Application Notes....[App Note]
Over Voltage Protection on AC Adapter Input AN-31 -  Application Note 31 from Microsem....[App Note]
Over-/Under-Voltage Protection of Electrical Appliances -  ....
Overload & Reverse Current Circuitry Protects Battery & Load -  03/01/96 EDN-Design Ideas....Battery-operated equipment is prone to the consequences of backward-installed batteries, accidental short circuits, and other careless use. The effects of a reversed battery are critical. Unfortunately, it's difficult to guard against a reversed battery. To make ,.... EDN is migrating links. This link is not verified.  Search the "title" EDN for new link.
Overvoltage Circuit -  A simple 5 Volt regulated PSU featuring overvoltage protection. [Andy Collison]
[GlobalSpec-AD/ad-smSQ-ihsGS.htm] [ad-djandassoc.htm]
OverVoltage Protection for LM317 -  This circuit is a modified version of an original interface on QSL Net. It is a fully isolated interface allowing computer control of the Trio/Kenwood R5000 receiver. Separate software is needed to control the receiver. (electronic schematic / circuit added 4/02) [submitted by Adam]
PIC Speaker Protection -  This doesn't replace P33, but it is possibly the ultimate speaker protection.  ....
Polarity protector outperforms Schottky diodes -  6-Feb-03 Issue of EDN  The polarity-protection circuit in Figure 1 is a high-performance alternative to the usual series diode (often Schottky]. The circuit incurs a much lower voltage drop than even the best Schottky diode. The circuit uses MOSFET devices because of their low on-resistance. For the transistors in this design, the combined on-resistance is 0.... [Design Idea by Mike Hovenga, BAE Systems, Austin, TX]
Power Supply Transient Protection for MNA & VNA Amplifiers -  AN-60-027 Application Note MiniCircuits.com  (app note added 04/05/06)
Power Supply-On/Off-protection -  ....
Power-line outage flashes red alert -  13-Jun-02 Issue of EDN This Design Idea expands on a circuit in a previous one to configure a power-outage detector with a flashing alarm (Figure 1, Reference 1]. The circuit plugs into a mains outlet and uses trickle-charged nickel-cadmium batteries. The green-LED monitors the presence of line voltage. The BZV55-C4V3 zener diode, D1 protects the batteries against overvoltage.... [Design Idea by Vasiliy Borodai, Zaporozhje, Ukraine]
Power-Supply Failure Alarm -  ....
Power-supply interrupter fights ESD-induced device latch-up -  21-Jul-05 Issue of EDN  Optoisolator-based circuit protects digital components from ESD.... [Design Idea by Emerson Segura, Lifescale Global Diagnostics Inc, Toronto, ON, Canada; Edited by Brad Thompson and Fran Granville]
Prevention & Control of Electrostatic Discharge ESD -  AN-40-005  Application Note MiniCircuits.com  (app note added 04/05/06)
Protecting & Monitoring Hot Swappable Cards in High Availability Systems -  DN360  Design Notes (Linear Technology)  (app note added 1/06)
Protecting USB Data I/O Ports -  MicroNote 117 from Microsem....[App Note]
Protection Circuit Covers a Wide Range -  07/17/97 EDN-Design Ideas.... EDN is migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Protection for your Electrical Appliances -  ....
RS-232 OverVoltage Protection Circuits -  (electronic schematic / circuit added 4/02)
[Google-ADS/i-ad-728x15-Links.htm]
 
Safety / Protection:  #-B     C-D     E-K    L-N     O-R      S      T-V


HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  January, 1998 - November, 2017     David A. Johnson & Associates.  All Rights reserved. 
 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.