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Relay Toggle Switch – Circuit Schematic
Relay Toggle Switch
A relay circuit to function as a DPDT toggle which is controlled by a momentary switch. I strive to keep my circuits simple with little or no integration (555`s...
Relay Coil Energy Saver – Circuit Schematic
Relay Coil Energy Saver
Some relays will become warm if they remain energized for some time. The circuit shown here will actuate the relay as before but then reduce the ‘hold cu....
Electronic Touch Switch – Circuit Schematic
Electronic Touch Switch
Mechanical contacts have the disadvantage that they wear out. That is why it is practical to use an electronic ‘touch switch in some situations. With suc....
Dual Relay Driver Board Circuit Schematic – Circuit Schematic
Dual Relay Driver Board Circuit Schematic
This relay driver boosts the input impedance with a regular BC547 NPN transistor (or equivalent). Very common driver. It can drive a variety of relays, includin...
DC Control for Triacs – Circuit Schematic
DC Control for Triacs
If a circuit is to switch a mains voltage, a relay is a simple solution in cases where switching times are long and high currents are involved. However, a.....
load switches with zero power MOSFETs – Circuit Schematic
load switches with zero power MOSFETs
As circuit power-supply voltages decrease and green energy trends grow in popularity, designers should re-examine some of the circuits that continually consume ...
TC4422 question re-phrased – Circuit Schematic
TC4422 question re-phrased
The TC4422 chip is in place of the BD140/BD139 totem pole. Unfortunately I do not have a multisim model for this chip so I can add it to the circuit.....
What type of protector to use – Circuit Schematic
What type of protector to use
Hi, I would like to use this relay: PE014A12 (tyco electronics) It has only 1 coil and it has to be driven + / - to switch on and - / + to switch off, .....
relay tutorial – Circuit Schematic
relay tutorial
A relay is an electro-mechanical switch that opens and closes under the control of another electric circuit. When current flows through the coil of the relay, a...
diy opto-isolated power switch – Circuit Schematic
diy opto-isolated power switch
This article describes how to build an opto-isolated power switch for controlling heavy loads with logic levels.....
Hybrid MAX MOSFETs – Circuit Schematic
Hybrid MAX MOSFETs
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Boost Switching Converter Design Equations – Circuit Schematic
Boost Switching Converter Design Equations
Where VD is the voltage drop across the diode, and VTrans is the voltage drop across the transistor. Note that the continuous/discontinuous boundary occurs when...
Properly Sizing Mosfets For Pwm Controllers – Circuit Schematic
Properly Sizing Mosfets For Pwm Controllers
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Mcu Reset And Oscillator Circuits Applicationnote – Circuit Schematic
Mcu Reset And Oscillator Circuits Applicationnote
Introduction The MIC2290 is an internally compensated standard step- up Switching Regulator with an integrated power Switch and Schottky Diode The attribute of ...
LTC1436ACGN-PLL High Efficiency Low Noise Synchronous Step-Down Switching Regulators – Circuit Schematic
LTC1436ACGN-PLL High Efficiency Low Noise Synchronous Step-Down Switching Regulators
In Broadband networking and high speed computing applications, multiple high current, low voltage power supplies are needed to power FPGAs Flash memory, DSPs an...
Half Bridge Driver Generates 100v 10a 4s Pulses – Circuit Schematic
Half Bridge Driver Generates 100v 10a 4s Pulses
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Green Current Mode Pwm Controller Fan7601 – Circuit Schematic
Green Current Mode Pwm Controller Fan7601
The UTC H1277 is a semiconducting integrated Hall Effect Sensor IC. It is just like all the hall sensitive Hall Effect Sensors designed to work in the situation...
Evaluation Board For The Ad9834 Direct Digital Synthesizer – Circuit Schematic
Evaluation Board For The Ad9834 Direct Digital Synthesizer
This paper describes the design of a low ’cost 90 W flyback switching power supply for a multi ’sync color monitor. In order to minimize the screen interfer...
PFC Switching Power Supply – Circuit Schematic
PFC Switching Power Supply
The following circuit shows about PFC Switching Power Supply Circuit Diagram. Features: suited for 1U (1.75-inch), minimise input harmonic .....
A Phase Controlled Triac (HT-32) – Circuit Schematic
A Phase Controlled Triac (HT-32)
The following circuit shows about A Phase Controlled Triac (HT-32) Circuit Diagram. Features: Dsimple circuit, bilateral trigger diacs offers a .....