Foldback current limiting is a technique used in voltage regulators to ensure that the maximum current is reduced when the output voltage decreases. In this article, we will discuss about foldback current limiting circuit and how the circuit works in detai
Tag: balanced power supply
The 13.8v power supply Circuit Diagrams shown below are based on a type 723 voltage regulator because it is reliable, widely available and cheaper than many of the latest high-power (>1.5 A) three-terminal voltage regulators.
The circuit described offers an alternative to using a series resistor for voltage dropping, utilizing a series capacitor and bridge rectifier. While there are limitations in terms of only utilizing one half-cycle of the mains waveform, the clever use of a zener diode allows for more efficient rectification.
The 3400V High-Voltage Power Supply Circuit Diagram is a simple unregulated power supply that is capable of providing a maximum voltage of 3400 volts and a load current of 1 ampere. This circuit utilizes a step-up transformer with primary ratings of 230 volts and 10 amperes, and a secondary rating of 2500 volts at 1 ampere
Transformerless Symmetrical Power Supply circuit which gives both polarity (positive and negative) zener regulated output voltages
Many hobbyists use an unregulated battery eliminator for their projects, or design a separate regulated power supply for each project. The circuit shown below is useful for those who need a variable and economical battery eliminator.
The regulated power supply circuit using the operational amplifier 741, 2n2955, and BC108 transistors provides an effective solution for maintaining stable voltage levels in electronic circuits. By utilizing the operational amplifier as a voltage comparator, the circuit ensures precision in voltage regulation.
The circuit diagram of discrete voltage regulator provided is simple and uses a small number of components. The output current capability is determined by the BD680 transistor, but the peak current of 6 A may pose challenges when matching with an integrated voltage regulator.
The 3200V power supply circuit diagram presented here offers an efficient solution for supplying power to a 1kW amplifier in a transmitter. The inclusion of a step/start circuit ensures that the rectifier diodes are not subjected to excessive surge currents during power-on.
In this article, we will discuss a 12V variable power supply circuit diagram using 2N3055, BC547, and BC557 transistors. These transistors, along with a 15V zener diode, play a crucial role in regulating the output voltage and current of the power supply.