Usb-powered Dsl Modem Supply
#USB power
#DSL modem
#voltage regulator
#power adapter
#electronics
#circuit design
#DC power
#low voltage
#energy efficient
#home automation
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5 volts high current power supply using 7805 voltage regulator
This power supply circuit is designed to provide a high current 5-volt output using a 7805 voltage regulator along with several standard electronic components. The transistor T1 functions as a current limiter. When the voltage across resistors R2 and R3...
Eggs warming control circuit
The circuit is illustrated. It includes a DC power circuit with a power switch (S3) that converts 220V AC voltage through a buck converter (T), a rectifier (UR), and filter capacitors (C3 and C4) to generate a +9V output. This...
Voltage Regulator
This regulator is suitable for devices that need up to 1mA. For higher output current, the resistors would have to be scaled down in reverse proportion to the peak current expected. With the resistor values shown, the regulator draws a...
home automation Installation
First and foremost, if one is not skilled with tools and electrical systems, it is advisable to hire a qualified electrician rather than attempting to undertake this task independently. The electrician should review this page for specific cautions and advice....
Logic PSU with Overvoltage Protection
The 5 volt regulated power supply for TTL and 74LS series integrated circuits has to be very precise and tolerant of voltage transients. These ICs are easily damaged by short voltage spikes. A fuse will blow when its current rating...
Increase Regulator Voltage Output Schematic Diagram
It is often necessary to configure a voltage regulator integrated circuit (IC) to provide a higher output voltage than that established by the regulator alone. One method to achieve this is by connecting the common terminal to the midpoint of...
18v power supply using lm7818
This power supply operates effectively to provide a stable 18V DC output with a maximum current of 1.5A. The circuit employs an LM7818 positive voltage regulator integrated circuit (IC), which includes several built-in features such as internal current limiting, short...
voltage regulator circuit with pass
This is a simple design for a voltage regulator circuit using a pass transistor. The design is built around the LM317T. The output current of the LM317T can be increased by incorporating an additional power transistor to share a portion...
Adjustable 3 Ampere Regulator
By combining a standard 78L05 voltage regulator with an integrated audio amplifier, specifically the TDA2030, it is possible to construct a simple yet effective adjustable voltage regulator. This regulator can output a voltage adjustable up to 20 V and handle...