Schematic Diagram of Power Supply
#voltage regulation
#transformer
#rectifier
#filter capacitor
#linear regulator
#switching regulator
#AC/DC conversion
#power management
#circuit protection
#DC output
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Variable Voltage Regulation
Controlling the output voltage from a regulator can be made variable in three ways:
1. Using a fixed reference zener diode to increase the output by the value of the zener
2. A variable resistor for variable output, note that...
Full-Wave Rectifier circuit
A circuit that utilizes both positive and negative alternations in an alternating current to generate direct current. There are two types of full-wave rectifier circuits: one that employs two diodes and requires a center-tapped transformer, and another that uses four...
Computer Off Switch
How often does it happen that a user shuts down Windows and then forgets to turn off the computer? This circuit automates that process. After Windows is shut down, a click occurs a second later, disconnecting the PC from the...
High Input Voltage Linear Regulator
Commonly used 3-pin linear voltage regulators, such as the LM317, cannot handle input voltages exceeding approximately 30V. The LR8A from Supertex Inc is a new adjustable three-pin regulator capable of accepting input voltages up to 450V and supplying an output...
L4970A Easy 5V 10A Switching Regulator circuit
A small-sized and easy-to-build 5V 10A power supply circuit is being sought. This circuit utilizes the L4970A integrated circuit as a 10A switching regulator. It is essential that the power supply input can handle a current of 10A to provide...
Talema 10VA transformer board
All DAC boards include a power supply section. It is sufficient to connect only a power transformer. This board is designed for a toroidal 10VA transformer manufactured by Talema, which features pins for PCB connection and exhibits minimal electromagnetic field...
Switching Regulator with L4972A
The LA9472A is a 2A monolithic step down switching regulator operating in continuous mode and realized in a new BCD technology allowing the integration of isolated, vertical DMOS power transistors with mixed CMOS/bipolar transistors. The device can deliver 2A at...
An automatic voltage regulator circuit
A step-down transformer converts AC 220V to a lower voltage. A diode bridge rectifier and filter capacitor provide a direct current (DC) output, which fluctuates with variations in the grid voltage. A resistive voltage divider is used for sampling. When...
CF1 CF2 main circuit
AC voltage is rectified by a bridge (VD1-VD4). A resistor (R1) limits the buck, while diode (VD5) provides clipping. A trapezoidal wave is generated as the trigger circuit for DC voltage and synchronization. When the base of transistor (VT1) receives...