Description

Woodward  9907-072  power module

Performance characteristics
Stable voltage output: The input rated voltage is 18-32VDC, the output rated voltage is 24VDC, and the output current is 16A. It can provide a stable DC power supply for the load, meeting the power supply requirements of large engine control systems and other equipment.
Efficient power conversion: It features a high power conversion efficiency, effectively converting input electrical energy into output electrical energy, reducing energy loss, providing stable power at a lower power consumption, and lowering operating costs.
Excellent heat dissipation design: Fully encapsulated in a robust aluminum chassis, equipped with an integrated passive thermal cooler, it helps dissipate the heat generated during operation, ensuring the module operates within an appropriate temperature range, with a maximum ambient operating temperature of 55°C.

It is equipped with fault indication and reset functions: It is provided with a functional fault LED light, which can visually display whether the module has malfunctioned, facilitating quick problem detection. It also has a manual reset function. After a system fault is eliminated, the module can be restored to normal operation through manual operation.
Adapt to harsh environments: Suitable for hazardous environments, it can operate stably under complex and harsh working conditions, providing reliable power support for equipment and ensuring the overall stability and safety of the system.
Strong voltage fluctuation suppression ability: It can stabilize fluctuating current, just like a voltage surge protector, effectively dealing with voltage fluctuations and spikes, providing a safer and more stable power supply for heavy machinery and other equipment, and protecting the back-end equipment from the influence of voltage fluctuations.

Working principle
Voltage conversion: The input rated voltage of this power module is 18-32VDC. Through internal power electronic devices such as MOSFET, it is converted into an output voltage of 24VDC, providing the load with the required stable DC power supply. As a voltage-controlled device, MOSFET has the capability of high-speed switching and can achieve efficient conversion of electrical energy through high-speed switching actions, converting the input electrical energy into a voltage form suitable for the load.
Voltage regulation control: The power module is equipped with a control circuit inside, which usually includes a PWM (Pulse Width Modulation) controller, feedback circuit and comparator, etc. The control circuit monitors the output voltage in real time. When the output voltage changes due to fluctuations in the input voltage or variations in the load, the feedback circuit will feed back the information of the output voltage change to the PWM controller. The PWM controller then adjusts the conduction time and duty cycle of the switch elements based on the feedback signal, thereby adjusting the output voltage to keep it stable.

Filtering process: As the DC voltage output by the power supply may have unstable factors such as ripple, it needs to be processed through a filtering circuit. The filter circuit is composed of components such as inductors and capacitors. It can remove high-frequency components from the output voltage, smooth the sawtooth waveform of the current, obtain a purer and more stable DC signal, reduce noise and interference, improve power quality, and ensure the stable operation of the load.
Protection mechanism: To prevent overload, short circuit and other faults from causing damage to the module and load, the 9907-072 power module is equipped with multiple protection circuits. For example, when the output current is detected to exceed the rated value, the overcurrent protection circuit will act promptly to limit the output current or cut off the circuit. When the module temperature is too high, the overheat protection circuit will be activated to prevent the module from being damaged due to overheating and ensure the safety of the power module and the back-end equipment.

Application field
In the field of power: It can be used in power plants to supply power to generator control equipment, governors, etc., ensuring their stable operation. When multiple generators are operating in parallel, they can also be combined with relevant control modules to supply power to equipment that achieves load balanced distribution, ensuring the stability of the power system.
In the industrial field: It is applicable to industrial automation control systems and provides stable DC power supply for automated production lines, robots, sensors, actuators and other equipment. In industries such as mining and metallurgy that have a high demand for electricity, it can meet the power supply needs of large-scale mechanical equipment and related control circuits, ensuring the continuity and stability of the production process.

In the field of shipping: It can be applied to the power system of ships, providing power for various electronic devices, engine control systems, etc. on board. In multi-unit parallel systems, it helps optimize the power usage of ships and ensure the power supply for ship navigation and various operations.
In the aerospace field, this module can be used for engine control equipment of aircraft and helicopters, as well as related equipment such as satellite navigation and remote sensing and telemetry, providing reliable power supply and meeting the strict requirements of the aerospace field for power supply stability and reliability.
In the field of oil and gas: During the extraction, transportation and processing of oil and gas, power can be supplied to various monitoring and control equipment, such as instruments and valve control systems on drilling platforms, to ensure the stable operation of the equipment in harsh environments.