VE-21V-CV

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DC DC Converters enable efficient power conversion from one DC voltage to another. The VE-21V-CV application field and working principle broadly falls under this category of converters.

DC to DC converters usually consist of two main parts - the input section and the output section - that are connected by an isolating transformer. The input section is the stage that is used to convert the original DC voltage to one that is suitable for the output stage, while the output section is used to convert the original DC voltage back to the desired voltage.

The key component of the VE-21V-CV is an isolated multi-winding synchronous buck-boost converter (MBSB-C). The MBSB-C utilizes a pair of two-phase interleaved windings - an input phase-shifting winding (P1) and an AC output stage-shifting winding (P2) - connected through a high frequency lamination transformer. This arrangement allows the converter to provide high power conversion efficiency with very low ripple on the output voltage.

The core of the VE-21V-CV is the two-phase interleaved windings, which are driven by the same high frequency switching waveforms. Both windings consist of two parts - a primary part (P1) that is used to provide the input voltage and a secondary part (P2) that is used to produce the output voltage. Each winding is divided into two sub-windings that are connected in series, with one part of each winding connected to the other in order to form a single winding. At the same time, each winding is connected to a different drive signal, allowing for two-phase operation.

In order to control the voltage output, the VE-21V-CV utilizes a two phase interleaved synchronous current-mode (SCM) control algorithm. In this scheme, the primary winding is driven with a triangular current waveform, while the secondary winding is driven with an alternating current waveform. This arrangement increases the voltage gain and lowers the current ripple. The output voltage is then regulated with a pulse-width modulator (PWM) regulator, which is used to regulate the output voltage to the desired level.

The VE-21V-CV is ideal for applications requiring high efficiency, high power-density, and low EMI. Its low power ripple and low voltage drop make it suitable for use in DC voltage converters, high-current DC/DC converters, and other power supply applications where high efficiency and low harmonics are desired.

In conclusion, the VE-21V-CV is a DC-DC converter application field and working principle that has proven to be a valuable part of the power conversion industry. Its efficient power conversion, low ripple and low voltage drop make it a great choice for various applications where high performance is desired.

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