http://www.simplecircuitdiagram.com Free Simple Circuit Diagram Mon, 06 Feb 2012 04:23:39 +0000 en hourly 1 http://wordpress.org/?v=abc http://www.simplecircuitdiagram.com/2011/12/02/ears-and-speakers-protector/ http://www.simplecircuitdiagram.com/2011/12/02/ears-and-speakers-protector/#comments Fri, 02 Dec 2011 19:06:24 +0000 Rend http://www.simplecircuitdiagram.com/?p=2726 Sometimes the output volume of amplifier is too high and hurts our ears. As well as hurting your ears, this incident could damage your loudspeaker. The circuit below can be used to protect both our ears and our loudspeakers from … Continue reading →]]> http://www.simplecircuitdiagram.com/2011/12/02/ears-and-speakers-protector/feed/ 0 http://www.simplecircuitdiagram.com/2011/04/07/triac-crowbar-for-ac-or-dc-lines/ http://www.simplecircuitdiagram.com/2011/04/07/triac-crowbar-for-ac-or-dc-lines/#comments Thu, 07 Apr 2011 17:06:30 +0000 Rend http://www.simplecircuitdiagram.com/?p=2507 A TRIAC Crowbar circuit which works for both AC and DC voltage is shown in the schematic diagram below. This circuit provide overvoltage protection for electronic or electrical equipment against excessive supply voltage.  Crowbar circuit provide two level of protection. … Continue reading →]]> http://www.simplecircuitdiagram.com/2011/04/07/triac-crowbar-for-ac-or-dc-lines/feed/ 0 http://www.simplecircuitdiagram.com/2011/03/02/transistor-overvoltage-crowbar-protector/ http://www.simplecircuitdiagram.com/2011/03/02/transistor-overvoltage-crowbar-protector/#comments Wed, 02 Mar 2011 01:10:28 +0000 Rend http://www.simplecircuitdiagram.com/?p=2411 This is a transistor crowbar circuit for overvoltage protection. This circuit is used to protect any devices, when the overvoltage occurs. This circuit consist of diode, transistor, and resistor, and a fuse.  The device that needs to be protected should … Continue reading →]]> http://www.simplecircuitdiagram.com/2011/03/02/transistor-overvoltage-crowbar-protector/feed/ 0 http://www.simplecircuitdiagram.com/2010/12/05/crowbar-power-supply-fault-protector/ http://www.simplecircuitdiagram.com/2010/12/05/crowbar-power-supply-fault-protector/#comments Sun, 05 Dec 2010 09:22:33 +0000 Rend http://www.simplecircuitdiagram.com/?p=2081 This is a The Crowbar circuit. This circuit is used to prevent the load from damaging. This circuit utilize a zener diode. The regulator steps down the 12V input to 5V. The load will damage when the regulator is fail … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/12/05/crowbar-power-supply-fault-protector/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/26/analog-%e2%80%9cwatchdog%e2%80%9d-timer/ http://www.simplecircuitdiagram.com/2010/11/26/analog-%e2%80%9cwatchdog%e2%80%9d-timer/#comments Fri, 26 Nov 2010 06:04:07 +0000 Rust http://www.simplecircuitdiagram.com/?p=2024 The circuit on the following figure is not for power supply management, but serves to prevent lock-up in processor based systems. If the system misses an instruction due to transient hardware or software events, this could be occur. A predictable … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/26/analog-%e2%80%9cwatchdog%e2%80%9d-timer/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/26/overvoltage-protection-with-lt1018/ http://www.simplecircuitdiagram.com/2010/11/26/overvoltage-protection-with-lt1018/#comments Fri, 26 Nov 2010 05:49:18 +0000 Rend http://www.simplecircuitdiagram.com/?p=2012 Sometimes, the regulator does not work well so the regulator generate overvoltage that will destroy the system. To prevent system damage, a overvoltage protection circuit should be used. The overvoltage occurred when the regulator connects the raw DC supply to … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/26/overvoltage-protection-with-lt1018/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/26/power-failure-detection-trigger-memory-saving/ http://www.simplecircuitdiagram.com/2010/11/26/power-failure-detection-trigger-memory-saving/#comments Fri, 26 Nov 2010 05:40:42 +0000 Rend http://www.simplecircuitdiagram.com/?p=2013 Sometimes the power goes down and we unable to save memory content. When the power goer down, the memory save circuit can be used to save memory content. This is a very useful circuit because the AC line dropout detection … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/26/power-failure-detection-trigger-memory-saving/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/25/power-on-reset-generator/ http://www.simplecircuitdiagram.com/2010/11/25/power-on-reset-generator/#comments Thu, 25 Nov 2010 13:42:12 +0000 Rust http://www.simplecircuitdiagram.com/?p=2008 After supply turn-on, another power related requirement involves generating a system reset pulse. The 5V rail comes up when supply power is applied to figure below. The LT1004 clamps at 1.2V and C1A’s positive input (Trace B) ramps at a … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/25/power-on-reset-generator/feed/ 0 http://www.simplecircuitdiagram.com/2010/09/30/2-5kv-isolated-rs232-ttlcmos-converterdriverreceiver/ http://www.simplecircuitdiagram.com/2010/09/30/2-5kv-isolated-rs232-ttlcmos-converterdriverreceiver/#comments Thu, 30 Sep 2010 03:27:23 +0000 Rust http://www.simplecircuitdiagram.com/?p=1561 The ADM3251E is a transceiver which has a high speed, 2.5 kV fully isolated, single channel RS-232/V.28. This device is operates from a single 5 V power supply. The device is ideally suited for operation in electrically harsh environments or … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/09/30/2-5kv-isolated-rs232-ttlcmos-converterdriverreceiver/feed/ 0 http://www.simplecircuitdiagram.com/2010/03/11/max6499-overvoltage-and-undervoltage-protection/ http://www.simplecircuitdiagram.com/2010/03/11/max6499-overvoltage-and-undervoltage-protection/#comments Thu, 11 Mar 2010 05:14:26 +0000 Rust http://www.simplecircuitdiagram.com/?p=758 The MAX6499 comprises undervoltage and overvoltage comparators for window detection. WHen the monitored voltage is within selected “window”, GATE is enhances and the n-channel MOSFET is on. GATE falls to OUTFB when the monitored voltage falls below the lower limit … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/03/11/max6499-overvoltage-and-undervoltage-protection/feed/ 0