V48A15C500B3

DC–DC converters form the interface between a renewable energy source and the battery bank or the load. This DC–DC converter also serves to maintain the battery charge level and the load voltage in the pre-determined range. The V48A15C500B3 DC–DC converter belongs to this interface group. The primary function of this DC–DC converter is power conversion and voltage regulation.

This DC–DC converter requires a voltage source of 40-85 VDC as input and provides output of 12-15 VDC in the range of 30-400 watts. It is a high-efficiency isolated type converter. The power conversion efficiency of V48A15C500B3 varies between 80-88%. It offers excellent protection features such as over current, over voltage, and short circuit protection.

In terms of application fields, V48A15C500B3 can be applied for cargos and trolley applications where the load requirements are 12V and 15V. It can also be used in solar/wind/hydroenergy systems, intelligent traffic systems and in medium/high power back-up systems. It is suitable for the equipments with load requirements of 30 watts to 400 watts.

The working principle of V48A15C500B3 is based on the principle of switch mode power conversion. It features a high frequency PWM (pulse width modulation) switching technology with peak efficiency of > 80%. The energy is transferred between the input and output stages through inductors, and the feedback control circuitry adjusts the duty cycle of the switching signal to maintain the output voltage steady. The input capacitors and output capacitors help to buffer the current and protect the circuit during peak currents. The following figure shows the schematic of the input and output stages of V48A15C500B3.

The key components of V48A15C500B3 DC–DC converter are the rectifier diode, control chip, FET (field effect transistor), output filter inductor and input filter capacitor. The rectifier diode (1N4001) rectifies the AC input. The output of the rectifier diode is a dc voltage which is fed to an input filter capacitor Cin for filtering the ripples of the dc voltage. The voltage output by the input filter is then applied to the control chip through the FET switch.

The control chip, also known as Pulse width modulation (PWM) controller, regulates the output voltage. The control chip adjusts the duty cycle of the PWM signal according to the input and output voltage. The FET switch is turned on and off according to the duty cycle of the PWM signal. When the FET switch is turned on, the input voltage is applied to the load through the output filter inductor. When the FET switch is turned off, the output voltage is still maintained by the output filter inductor. The control chip constantly monitors the output voltage and adjusts the duty cycle to keep the output voltage in the desired range.

Thus, the main purpose of this DC-DC converter is to regulate the output voltage from a 40-85 VDC input to 12-15 VDC for the desired application. It provides an efficient solution for power conversion, load regulation and protection purposes in various applications. V48A15C500B3 is designed for critical applications due to its high-efficiency and excellent protection features.