Latching power switch uses momentary-action pushbutton
Basic Electronics

Latching power switch uses momentary-action pushbutton

Anthony Smith @ edn.com published a push button latching circuit able to control a load with a single push of a button. The circuit in Figure 1 shows how you can use a simple, momentary-action, SPNO (single-pole, normally open) pushbutton switch to latch power to a load. Requiring...

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Over Current Protection Switch
Control

Over Current Protection Switch

Current Sensing Switch is designed to operate a Relay Contact when there is a DC current through the sense resistor exceeds the set point, Set point adjustable from 1A to 3Amp using on board potentiometer. This circuit can offer over current protection to your...

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High-band DPD Demodulator with Integrated DSA and RF Switch
RF

High-band DPD Demodulator with Integrated DSA and RF Switch

The IDTF1370 is a digital pre-distortion demodulator (DPD) for power amplifiers linearization in BTS transmitter that utilize the IDT zero-distortion, and glitch-free technology that offers customers an unparalleled high-performance DPD demodulator. It utilizes the technique called...

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Isolated Digital ON/OFF Switch for AC load
Power

Isolated Digital ON/OFF Switch for AC load

ON/OFF AC load Controller project offers simple On/Off Switch Control with two tact switch. Specifications Input supply – 12 VDC @ 40 mA Output – upto 500 W – 230 VAC Onboard tactile switch for ON/OFF control Opto-isolated Triac based design Power-On LED...

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Power ON Delay Switch
Timer

Power ON Delay Switch

Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED...

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Adding a USB power port to a switch for IoT
USB

Adding a USB power port to a switch for IoT

Jesus Echavarria @ jechavarria.com has tipped us with his latest project. In this project he adds a USB power port to a switch. Also I need a power supply for the Arduino board, and I think that, better than a external USB AC wall adaptor or power supply, is modify the switch to add...

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ESP8266 – 5$ internet connected switch
Control

ESP8266 – 5$ internet connected switch

EasyIoT @ instructables.com shows us how to build an Internet connected switch using ESP8266 Wifi module and EasyIoT Cloud service. In this tutorial we will show how to build WiFi internet connected switch connected to EasyIoT Cloud. We will use ESP8266, solid state relay and...

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Light and Dark Sensitive Switch
Control

Light and Dark Sensitive Switch

Light / Dark Sensitive Switch project is a simple project which operates a relay when the light falling on the LDR goes below or goes above a set point. Input - 12 V @ 50 mA Relay output - SPDT relay 2-in-1 kit, either as light sensitive kit or dark sensitive switch Onboard...

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