A regulated DC power supply is a power device that converts AC voltage to DC voltage, transforming unstable AC power into stable DC power. Regardless of AC power fluctuations, the regulated DC power supply maintains the voltage within a certain range, thus ensuring that the unstable AC power becomes a regulated DC power supply with constant current.
What is a regulated DC power supply?
A DC power supply (also known as a desktop power supply) provides DC voltage to devices. The DC power supply management subsystem can use AC, DC, battery, or very low voltage as input signals.
In a DC power supply circuit diagram, low-voltage conversion, rectification, continuous filtering, and voltage regulation are the four main stages of voltage regulation.
DC power supply designs are divided into two types: unregulated power supplies and regulated power supplies.
Regulated power supplies can be linearly adjusted or switched.
Switching regulated power supplies are mainly divided into primary and secondary switching modes.
DC power supplies have four main outputs: constant voltage, constant current, voltage limiting, and current limiting.
Battery-removable DC power supplies, DC/DC power supplies, programmable power supplies, and multi-range power supplies are the most common types of DC power supplies on the market. When selecting a DC power supply, consider the following requirements: constant current and constant voltage modes, output, control, temperature, AC input, waveform and noise, tracking accuracy, and DC separation.
Why you need a DC regulated power supply
DC stabilizers can be used to power every circuit until the circuit is complete. Therefore, they have proven to be practical tools for testing and experimentation, providing reliable power for a wide range of voltages. They allow you to test your plans and ideas faster and easier, making your life easier because you don't need to install a specific power supply or test every project.
The controller can balance the output voltage even when the input load changes.
Typical applications of DC voltage regulators
1. Testing circuits;
2. Testing mobile phone chargers;
3. Voltage regulators in various electrical appliances;
4. Various oscillators and amplifiers;
5. Audiovisual applications.
Some features to consider when purchasing a power supply
1. The required maximum voltage and current;
2. Check the required maximum voltage and current and select a model accordingly. Ideally, it should be able to support and test most of your projects. The controller must be able to track the airflow when injecting voltage into the circuit.
3. CC/VC Protection: Constant current/constant voltage protection allows you to set limits. This feature is worth considering, especially if you are a beginner or hobbyist.
4. Number of Output Channels: Generally, one output channel is sufficient for slightly more expensive testing requirements. Stable power supplies with dual and triple outputs are very expensive. However, they are necessary if you require multiple power supplies at once.
5. Linear Power Supplies vs. Switching: While switching power supplies are generally lighter and more compact, wired power supplies are better suited for powering analog circuits due to their lower electrical noise. Transformers are used to reduce AC cable voltage below the AC voltage, and then multiple rectifiers and filtering processes are used to achieve a pure DC voltage.
6. Short Circuit Protection: Check the short circuit protection to ensure your equipment will not be damaged, even in the event of an accident, overcurrent, or exceeding the allowable current.
Summary
DC regulators have a wide range of applications. They are commonly used in testing or experimentation. They not only ensure the normal operation of various electronic devices but also improve the stability, reliability, and performance of the system. You can choose a suitable DC regulated power supply based on your specific needs.
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