Description In Fig.1 see a 100 second delayed turn ON relay RL1 switch, if plug power 12V in circuit. In Fig.2 see a two range 6-60 second and 1-10 min...
Switching Regulator for High Power Efficiency When you should regulate a high voltage to a much lower voltage, switching regulator must be the only cho...
The sound picked up by SPKRl, which acts as a microphone, is fed to transistor amplifier Ql. The output of Ql is applied across coupling transformer T1...
Below isthe circuit test schematic of ADG333A IC for charge injectionpurpose. Charge Injection is terminology which can be defined as measure of the gl...
Transistors Ql and Q2 control latch Q3 and Q4 to switch on the lamp. A high resistance from touching the electrode biases Qlor Q2 on, setting or resett...
This article describes the IR Remote Switch (NE555). The principle is very simple, very practical. The circuit components can help you understand bette...
This diagram is the schematic diagram of telephone switcher using relays. This device connects to the telephone line and can be used to remotely contro...
The circuit below switches AC or DC power to a load using an ultra low power 3v latching relay with two coils. The relay can handle about 10 amps of cu...
Using this switch mode regulator circuit, you can get a stable 12 volt output (500mA) although you just have 4,3 10V power supply. You can even boost a...
This article describes the Infrared switch using any infrared remot (74LS74). The content is very simple, very practical. The components of the article...
Description In most countries it is now mandatory or at least recommended to have a rear fog light on a trailer with the additional requirement that, w...
This article describes the High Frequency Switch (2N4391). The content is very simple, very helpful. Components in this article can help you understand...
A high impedance input is provided by Ql, a general purpose field effect transistor 741 op amp is used as a sensitive voltage level switch which in tur...
Today I leads Switching supply computer Circuit. Come to give friends in see again. By this circuit has can to give electricity pressure 5V 15A,-5V 1A,...
Description Due to the low current drawing, the circuit can be supplied from 230Vac mains without a transformer. Supply voltage is reduced to 12Vdc by ...
This article briefly describes the Video Switch for Intercom System (CD4066). This principle is easy to understand, but also very practical. Depth unde...
Battery charger circuits A very simple 3.25W CV/CC charger can be designed using LinKSwitch || family IC manufactured by Power Integrations. This elect...
This is a switching circuit that provide latching mechanism to make a set of radio buttons using push buttons. This circuit consist of interlocking cir...
This article describes the IC CD4011 Touch Switch Circuit Diagram (CD4011). The content is very simple, very helpful. Components in this article can he...
This article describes the Video Switch CIRCUIT (CD4017). The content is very simple, very helpful. Components in this article can help you understand ...
Next is a two-line intercom plus telephone switch principle explanation. The most effective way is to grasp the principle of combining schematic view t...
Description The idea is simply to turn off the negative voltage load. Some examples:- - Bias votlages for LCD panels - RF Amplifiers - Audio Amplifiers...
The LM2574 series ofregulatorare monolithic integrated circuits that provide all the active functions for astep down(buck) switching regulator, capable...
In the form of the LT1579 Linear Technology (www.linear-tech.com) has produced a practical battery switch with an integrated low-dropout regulator. In ...
This article is a voice control switch circuit. The circuit is not new, but it proved so useful, simple and cheap, worth building. This circuit USES aM...
A clap switch circuit is a classic beginners project. Equipment can be switched on and off by just clapping your hands. Add a tiny microcontroller and ...
This is circuit of Clap Triggered Switch. When the circuit detects tap, or short whistle or a clap, this circuit will toggle the LEDs. 33k and 5K6 char...
Uses the MAX641 switching controller and an external discrete charge pump to step up the input voltage. This circuit can service low loads and is effic...
View Full Size Image View Original Datasheet The LTC4415 contains two monolithic PowerPath ideal diodes, each capable of supplying up to 4A with typica...
This switch reacts to the touch of a finger to turn lights and/or appliances on or off. The device uses the human body as an antenna to pick up 60-Hz h...
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