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DIY Solid State Relay – Circuit Schematic
DIY Solid State Relay
One advantage of solid-state relay (SSR) over conventional electro-magnetic relay (EMR) is its tear and wear free operation. S201S01 from Sharp is a good e.....
Optimizing the Triacs – Circuit Schematic
Optimizing the Triacs
Modern power control systems utilize electronic devices like Thyristors for power switching, phase control, chopper etc. These devices also find applicatio.....
The TRIAC – Circuit Schematic
The TRIAC
SCRs are unidirectional (one-way) current devices, making them useful for controlling DC only. If two SCRs are joined in back-to-back parallel fashion .....
power mosfet circuit – Circuit Schematic
power mosfet circuit
The schematic is attached, I`d like to have a suggestion if any improvement could be made, in particular I`d need to add a reverse polarity connection protectio...
need help with latching relay circuit – Circuit Schematic
need help with latching relay circuit
Hey guys, need some help with a project. Im pretty good with 12v electrical wiring but am having trouble figuring this out. Im building a switch panel .....
Thyristor Circuit and SCR Switching Circuits – Circuit Schematic
Thyristor Circuit and SCR Switching Circuits
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Basics of Thyristors – Circuit Schematic
Basics of Thyristors
Thyristor is a switching device based on internal regenerative feedback of 2 transistors. One of the most popular type is called silicon controlled rectifier(SC...
Triac-SCR-Thyristor – Circuit Schematic
Triac-SCR-Thyristor
A Center tap 50Hz Step Down Transformer with two diodes is used to get a train of Positive Sine Pulses at 100Hz which is applied to Q6 base via R51. 2N2646 is a...
TRIAC Switch To Control High-Voltage Devices – Circuit Schematic
TRIAC Switch To Control High-Voltage Devices
From ages electron-magnetic relays are being used as switches to control high voltage devices. But, because of their bulky size and noise (both electrical and m...
MC33374 high power voltage switching regulator – Circuit Schematic
MC33374 high power voltage switching regulator
This switching power supply circuit diagram is based on the MC33374 high power voltage switching regulator IC manufactured by Motorola Semiconductor. This MC333...
MAX668 16V 4.4A switching power supply circuit design electronic project – Circuit Schematic
MAX668 16V 4.4A switching power supply circuit design electronic project
A very simple 16 volt switching power supply electronic circuit can be constructed using this circuit diagram that is based on the MAX668 constant-frequency, pu...
how trigger bt136 – Circuit Schematic
how trigger bt136
i had a problem while designing a circuit in which BT 136TRIAC has to be triggered from a half rectified current of 30 mA at about 6V. Its not getting triggered...
ac switching question – Circuit Schematic
ac switching question
The AQV20 series should be fine to drive an A. C. relay coil if the de-energizing back EMF from the relay coil does not exceed 600 v rating. It is diode in seri...
switching ac loads triac – Circuit Schematic
switching ac loads triac
A circuit to turn on/off a couple of big AC solenoid valves and a couple of 1ph ac motors. my line v is 132VAC and the solenoids measure 1A and the motors measu...
schematic scr triac diac – Circuit Schematic
schematic scr triac diac
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relay triac – Circuit Schematic
relay triac
How hard it would be to convert the relay in this design to a triac It switches a 120v Ni-chrome wire that is 60ohms. Thanks for any help you can offer. Your ri...
Sequencer type switch opener closer circuit – Circuit Schematic
Sequencer type switch opener closer circuit
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Reducing Relay Power Consumption – Circuit Schematic
Reducing Relay Power Consumption
This circuit proves that microcoprocessors, PCs and the latest ultra-accurate DACs are overkill when it comes to controlling four relays in sequence in re.....
The Gentle Touch – Circuit Schematic
The Gentle Touch
Consumer appliances these days hardly ever have a proper mains switch. Instead, appliances are turned on and off at the touch of a button on the remote control,...
Switch Mode Power Supply – Circuit Schematic
Switch Mode Power Supply
National Semiconductor has been producing and designing ICs for use in switch-mode power supplies for many years. The application of these devices is norm.....