This article briefly describes the Hard Disk Switch (1N4148). Although this circuit is very easy to understand, but also very practical. Circuit elemen...
Description This circuit will remove the transient spikes and contact bounces from a non-latching push button switch. Notes: Using a 555 timer as a mon...
This is the DC switching regultor Voltage 5V at current 3A. It is make for digital circuit. The important part of the circuit is LM2673, it is 3A Step-...
Circuit diagram Notes: This sensitive sound operated switch can be used with a dynamic microphone insert as above, or be used with an electret (ECM) mi...
Rotary switches electronic circuits, using a single switch choose a function of external control circuit has 9 positions.Work was, when the switch S1, ...
A Touch On/Off Switch is desired, this circuit fills the bill. Two sensitive gate SCRs are interconnected, so that when one of the devices is turned on...
When switching loads with the aid of a thyristor, a large amount of RFI can be generated unless some form of zero crossing switch is used. The circuit ...
This article briefly describes the Switchmode Constant Current Source (LM2575T). This principle is easy to understand, but also very practical. Depth u...
The A/B Switch circuit consists of three ICs and a handful of resistors. Two gates from a 4011 quad 2-input N AND gate (U1A and U1B) are configured as ...
Above circuit diagram is a easy, simple and cheap switching voltage regulator which has capability to deliver adjustable voltage output range of 1.8V t...
This article briefly describes the Negative-Output Switching Regulator (LM2575). This principle is easy to understand, but also very practical. Depth u...
Description This is a universal version of the Four-Digit Alarm Keypad. Ive modified the design of the output section - to free up the relay contacts. ...
This article describes the Relay Switch Activated by Tone and Signal (LM741). The principle is very simple, very practical. The circuit components can ...
This article describes the Variable Frequency Switch Mode Regulator (TL497). The principle is very simple, very practical. The circuit components can h...
This article describes the Buck-Boost (Switch Mode) Regulator Provides 12V from 5-35V Supply (L7805ACV). The content is very simple, very helpful. Comp...
View Full Size Image View Original Datasheet The LTC3600 is a high efficiency, monolithic synchronous buck regulator whose output is programmed with ju...
The LA7016 is Japans Sanyo produced a single two electronic switch integrated circuits, is a common, signal switching with the TV audio, music center a...
STANDBY/ON switch below is appropriate for applications (industrial and telecom, for example) in which the circuitry must remember its state (STANDBY o...
Description This is a simplified version of the Universal Keypad-Operated Switch. I have modified the design to reduce the complexity of the circuit - ...
This article describes an infrared switch circuit schematic presentation. The principle is simple there, we recommend that combine text carefully read ...
Sound Operated Switch Circuit Circuit diagram Notes: This sensitive sound operated switch can be used with a dynamic microphone insert as above, or be ...
This kind of impulse generator simulates transient overvoltages on residential or industrial low-voltages AC power circuits (120 or 220V). And the foll...
There are applications which uses?HIP2100 half bridge driver such as Telecom Half Bridge Power Supplies, Avionics DC/DC Converters, Active Clamp Forwar...
This article describes the DB-9 switch to flip betw1een tw1o serial ports (RS232). The principle is very simple, very practical. The circuit components...
Relay Timer switch ??? Fig.1 ??????? ???? ????????????? ? ?????? ???????? ?? ????????? ??, ???? ?????? 100 ?????????????, ???????? ??? ???? RL1 ?? ????...
A 3-x -3-inch piece of circuit board, or similar size metal object which functions as the pick-up sensor, is connected to the gate of Ql. A 100-MD resi...
Signal Switches A mechanical switch has the desirable characteristics of practically zero resistance when ON, and practically infinite resistance when ...
This article describes the Switch-on delay circuit (2N4871). The principle is very simple, very practical. The circuit components can help you understa...
A brief description: the counting pulse from J1-7 is filtered using 74HC00 NAND doors; it goes directly into the 4017, that start counting. The 4017 ou...
A normal 9V battery would be considered as dead battery when the voltage falls below 7 Volts. With this switching regulator, a? lifetime of a 9V batter...
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