DC DC Converters

DC-DC converters are electronic devices that convert a direct current (DC) input voltage to a different DC voltage output, usually to one that is lower or higher. The output voltage is typically regulated to a smaller, specific magnitude. An example of a DC-DC converter is the VE-261-CY-F1, a 10-48 V DC input to 12 V DC output. This type of converter is used in various applications, such as industrial control systems, vehicle power supplies, computers, and home electronic devices, to ensure that they are supplied with the correct different voltage.

Working Principle of DC-DC converters

The underlying principle of all DC-DC converters is to transform one DC voltage level to another. It starts from the input electrical power to a specified output, usually with better stability, voltage level, and power quality. This can be done by two means- linear and switching.

Linear DC-DC converters work by allowing current to pass through a series of impedances, usually transistors, resistors, and inductors, along with a rectifier bridge. The current must also pass a controlled current or voltage source to allow for the transformation ratio. The current is then rectified, adding some voltage gain, and then regulated to ensure that the output voltage stays at the desired level. This type of conversion is more suitable for applications that require low noise.

Switching DC-DC converters, also known as switched-mode power supplies, are based on transistors that are used to rapidly switch between charging periods and discharging periods. These periods typically occur at frequencies of tens or hundreds of kilohertz. The switch is connected in series with a high-frequency capacitor, inductor, and rectifier bridge, and followed by a voltage regulator to maintain the desired output voltage. This type of conversion has better power efficiency and can support a wider range of input and output voltages.

Application Field of VE-261-CY-F1 DC-DC Converter

The VE-261-CY-F1 10-48 V DC input to 12 V DC output is a switch-mode DC-DC converter. This type of converter is most commonly used in industrial systems, where wider input voltages are required. It is also suited for vehicle power supplies, computers, and home electronic devices. This converter complies with the safety requirements of EN 60 950-1 and has a long lifetime (3 million hours).

The VE-261-CY-F1 also helps in providing high power efficiency and reliability, which is especially important in industrial systems. This converter provides up to 92% power efficiency, which is highly desirable in any system or application. The VE-261-CY-F1 is designed to operate more reliably than most other similar DC-DC converters, ensuring that the system it powers remains stable even in harsh or extended working conditions.