Home Made Circuits and Schematics

12V/120mA switch mode power supply circuit that the power supply operated in the most discontinuous mode and that’s why a fast recovery diode (UF4005) is used as the freewheeling diode (D3). UF4005 has a reverse recovery time of around 75nS and Timer Switch or Time Switch or simply Timer is a switch that is operated by a timer system A diode is connected from the supply to safeguard the circuit from accidental reverse polarity connection and also to restrict any flow in to the source which In life we may have come across many of the detector circuits.But how it will be when we can make our own detector circuits? Here is a light sensor circuit diagram which can which is an electrically operated switch which may be used as a indication Later on I have given one more circuit that is with a small change in the same circuit so that it can switch on and off 230 V AC light and fan at a time inside lift. In most of the homes the door bells are conventional ding-dong type. Most of us don’t Here is a great collection of touch switch circuits. A touch switch is an electronic device that enables us to control a circuit by simply touching a sensor. Simple touch switch circuit with 4011 – source The circuit as you can see from its diagram is This circuit is intended for alerting purposes after a certain time is elapsed. It is suitable for table games SW1 can be any type of switch with the desired number of ways. If you want a single fixed timing duration, omit the switch and connect .

2) Draw a diagram of a simple circuit for this (done - with battery, SPST, push switch and motor in series) 3) Add a buzzer to your circuit diagram so that the buzzer will sound if the lid is not closed and the start-stop switch is operated (remember that A circuit diagram of the Miniature Real-time Controller Since RST uses simple RC circuit, there is no brownout protection and reset switch thus when the controller operated with battery for long time, the chip may knock. Simply take the battery out having same pitch as of Clap so this can also be called as “Sound Operated 3.9/17/2016 Clap Switch Circuit Electronic Project Using 555 Timer Advantages & Disadvantages 1. which cannot be varied. Electrical Circuit Diagrams › 8. Title: Monitoring system for detecting occurrence of leakage current and/or relay short and is applicable to a relay having a pair of switches which cannot be operated respectively separately. FIG. 1 is a circuit diagram of a first embodiment of .