Capacitive or Transformerles Power Supply Circuit
#capacitive
#transformerless
#AC/DC
#voltage regulation
#power supply
#circuit design
#electronics
#energy efficiency
#low cost
#compact design
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Capacitive level measuring circuit
The capacitance change in a capacitive sensor is directly converted into electrical parameters, which are then unified for signal transmission, processing, and display. These electrical parameters can be categorized into resistive, capacitive, and inductive types. This explanation focuses on capacitive...
Transformerless Power Supply
A power supply project that operates without a traditional transformer, potentially saving costs but also presenting lethal voltages at the output terminals. This project should not be attempted by beginners due to the electric shock hazard. In the UK, the...
car battery charger circuit
The circuit is designed to be powered directly by a power supply, which is why it does not include a transformer, rectifier, or filter capacitors in the schematic. However, these components can be added if desired. To operate the circuit,...
-15 V 1-A Regulated Power Supply
The supply receives -20 V from the rectifier/filter which is fed to the collector of the Darlington pnp pass transistor, a TIP105. The base drive to the TIP105 is supplied through resistor R5. The base of the TIP is driven...
5V transformerless Power Supply
I use this power supply for applications that doesn't use too mucho power. It can provide power to circuit that uses less than 100mA without any problem. The disadvantage of this circuit is the danger of an electrical shock, so...
Capacitive Dimmer switch circuit
The capacitive dimmer switch circuit is illustrated in Figure 9. It operates based on the principle of capacitive reactance with alternating current. When the switch is in the position shown, the normal light bulb operates at maximum brightness. When the...
Flyback Power Supply Powers Subscriber Line Interface Circuit
Cable and xDSL modems are increasingly popular, leading to a need for designs that interface with existing telephones at subscriber locations. The subscriber line interface circuit (SLIC) within the modem must ring the phone and provide loop current during conversations....
Capacitive Sensors
For proper operation, the circuit ground must be connected through a small-value, high-voltage-rated capacitor to one side of the mains supply socket. The "Live" side is the right one. This circuit is designed to animate shop windows using a capacitive...
Eng Sony AV 3400
The original power supply AC-3400 features a charger function. In addition to the power button and the indicator light for power status, the front panel includes a charge level indicator for the accumulator, a start button, and a socket for...