RTS-1505

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DC DC converters are electronic power conversion devices that convert direct current (DC) from one voltage level to another using transistors and capacitors. The RTS-1505 is a high performance DC DC converter capable of producing up to 60W output power from a single-phase full-wave rectified input power supply. The RTS-1505 implements a quiescent current regulation method with dynamic response that significantly reduces input power ripple and enables improved power conversion efficiency.

Application Field of RTS-1505

The applications of RTS-1505 DC DC converters range from industrial and instrumentation applications such as battery chargers, to automotive applications such as onboard chargers for hybrid electric vehicles. The RTS-1505 is also suitable for power-supply balancing, fuel cell systems, and power management for telecommunication systems. This device is designed to provide enhanced efficiency, wide load current range, and wide input voltage range are key features of RTS-1505.

Working Principle of RTS-1505

The RTS-1505 uses a quiescent-current regulation method that combines the integration of a low on-resistance switch with an external loop compensation resistor. When the output voltage is lower than the reference voltage, the gate driver turns the switch on. This causes a current to flow through the external loop-compensation resistor and the inductor, increasing the output voltage. The controller turns off the switch when the current reaches the programmed current limit, allowing the energy stored in the inductor to flow to the output.

When the output voltage is higher than the reference voltage, the gate driver turns off the switch. This causes the current in the inductor to decrease as energy is transferred back to the input. The controller turns the switch back on when the current reaches the programmed current limit. This cycle is repeated until the output voltage reaches the reference voltage.

The key advantage of the quiescent-current regulation method is that the input current ripple is significantly reduced, resulting in improved power-conversion efficiency. The quiescent-current regulation method can also be used to improve the power factor when the RTS-1505 is used as a converter in a three-phase system.

The RTS-1505 also implements a dynamic turn-on and turn-off switching pattern redundancy, which provides improved voltage regulation and ensures reliability. The turn-on and turn-off switching patterns are programmed for optimized performance under different operating conditions such as low capacitive loads, capacitor discharge loads, and high capacitive loads.

The RTS-1505 also includes a varistor (MOV) for added protection against transients and overvoltage conditions. This allows the device to handle a wide range of line and load conditions with excellent protection.

In summary, the RTS-1505 is a high performance DC-DC converter capable of producing up to 60W output power from a single-phase full-wave rectified input power supply. The quiescent-current regulation method, dynamic response, redundancy, and varistor protection all allow the RTS-1505 to handle a variety of loads and line conditions with excellent efficiency. This makes the RTS-1505 well suited for a variety of industrial and automotive applications.

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