LM4911 different power circuit conduction time recommended
The LM4911 is a power amplifier designed for audio applications, providing high efficiency and low distortion. The circuit configuration allows for various power conduction times, which can be critical in applications requiring precise control over amplifier performance to optimize power consumption and thermal management.
In this circuit, the MOSFET serves as a switch that is controlled by the shutdown (SD) terminal of the LM4911. When the SD terminal is activated, it turns on the MOSFET, allowing current to flow through the amplifier. The duration for which the MOSFET remains on is regulated by the controller, ensuring that the amplifier operates within its specified parameters for optimal performance.
The on-time regulation is essential for applications where battery life is a concern, as it prevents the amplifier from drawing excessive current when not in use. This feature is particularly useful in portable audio devices, where power efficiency directly impacts battery longevity.
Additionally, the design may incorporate feedback mechanisms to monitor the output and adjust the on-time accordingly, further enhancing the amplifier's efficiency and performance. Proper layout and component selection are also critical in minimizing noise and ensuring stable operation across varying conditions.
Overall, the implementation of the LM4911 with a controlled MOSFET shutdown feature presents a robust solution for managing power in audio amplification applications. As shown for the LM4911 different power conduction time recommended circuit. This circuit uses a controller, use the controller of the MOSFET LM4911 shutdown control (SD) termi nal is controlled to achieve on-time regulation of the amplifier.
Related Circuits
This circuit is a motion detection sensor that utilizes a light source and detector as an infrared motion detector. It incorporates components such as a light-emitting diode (LED), a phototransistor, a transmitter, a receiver, an NE555 timer configured as...
SHURE is an American corporation that manufactures consumer and professional audio electronics, including microphones, phonograph cartridges, and discussion systems. SHURE Incorporated is a well-established entity in the audio electronics industry, recognized for its innovative design and high-quality products. The company...
A commonly used high-sensitivity header utilizes a microammeter to create a resistance meter capable of measuring very low voltages. The design adheres to the principles of a milliameter resistance meter. The circuit diagram is illustrated in Figure 5-37, which...
A light Theremin constructed using an oscilloscope panel, enhanced with a Joule Thief circuit. The design incorporates a 10 K variable resistor for pitch control and a 20 K variable resistor for volume control. The circuit is powered by...
The base of Q1 is connected to the car's ignition circuit; the easiest point to make that connection is at the ignition switch fuse in the car's fuse panel. Also, one side of the piezoelectric buzzer is connected to...
To obtain an accurate pressure value, it is essential to eliminate offset errors. Numerous basic circuit designs are employed to remove these offset errors. Offset errors in pressure measurement systems can lead to inaccuracies in the readings, which may affect...