A bench power supply is a versatile electronic device used in laboratories, workshops, and other technical settings to provide a stable and adjustable source of electrical power for testing, troubleshooting, and powering various electronic components and devices. It's commonly used by engineers, electronics hobbyists, and technicians for tasks such as circuit testing, prototyping, and calibration.
The key features of a typical bench power supply include:
Adjustable Voltage Output: A bench power supply allows you to set the output voltage to a desired level within a specified range. This is useful when working with different types of components that require specific voltage levels for testing or operation.
Adjustable Current Output: In addition to voltage, a bench power supply can also regulate the output current. This feature enables you to limit the amount of current that flows through the circuit under test, protecting components from overcurrent situations and potential damage.
Stability and Accuracy: Bench power supplies are designed to provide stable and accurate voltage and current output. They often have low ripple and noise levels to ensure that the supplied power is consistent and reliable.
Multiple Output Channels: Some bench power supplies offer multiple output channels, allowing you to power multiple circuits or devices simultaneously with different voltage and current settings.
Digital Display: Many modern bench power supplies feature digital displays that show the set and actual output voltage and current values, making it easy to monitor and adjust the settings.
Constant Voltage (CV) and Constant Current (CC) Modes: These modes are essential for ensuring that the power supply maintains a constant voltage or current output, depending on the requirements of the connected circuit.
Safety Features: Bench power supplies often come with built-in safety features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal protection. These safeguards help prevent damage to both the power supply and the components being tested.
Remote Control and Programming: Many bench power supplies offer remote control capabilities, allowing you to control and adjust the settings via computer interfaces such as USB, RS-232, or LAN. This can be particularly useful for automated testing setups.
Bench power supplies are available in various voltage and current ranges to accommodate a wide range of applications. They provide users with the flexibility to simulate different operating conditions and test the behavior of electronic circuits under controlled parameters.