BQ2660-9R

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DC DC converters are used to convert the DC electricity from one voltage to another, allowing multiple power sources to be connected and used simultaneously. They can also implement signal conditioning functions, including power regulation, voltage conversion, frequency reduction, and isolation. The BQ2660-9R is a DC DC converter manufactured by STMicroelectronics that uses a switched-mode power conversion technique to provide a regulated output voltage from a wide input range of 3.3-20 VDC. It can provide an adjustable output voltage range of 1.8-15.6 VDC, and its switching frequency can be programmed using an external component or through the on-board trimming resistor.

The BQ2660-9R works on a number of principles in order to achieve its goals. The first is a DC switching principle, which is used to change the DC input voltage from one level to another, and also to provide isolation between the input and output circuits. As the switching frequency is much higher than the input voltage or current, these changes occur quickly and without any significant voltage or current drops. A second principle employed is the pulse-width modulation (PWM) concept, which is used to control the switching frequency and modulation of the converter’s output. This principle is based on the fact that the voltage or current waveforms of a DC power supply are of a sinusoidal nature. By controlling the length of the pulse’s “on” and “off” times, the switching frequency and the modulation depth can be precisely set.

In addition to the switching technique, the BQ2660-9R also implements an improved short-circuit protection system. This is accomplished through the use of an external current sensing resistor, which senses the load current and tracks the output voltage. If the load current increases beyond a certain limit, the controller will shut down the converter in order to protect the components from any potential short-circuit conditions. Furthermore, the chip is designed to prevent current waveform distortion, which is often caused by excess loading when using switched-mode power supplies.

Another important feature of the BQ2660-9R is its high efficiency. It provides very low output ripple and noise, and its switching frequency is adjustable to between 4 kHz and 16 kHz. This is important, as it allows the chip to better match the load needs of various applications. Additionally, it also allows the chip to operate more efficiently at higher frequencies, further reducing the overall power consumption. Finally, the chip can provide up to 80W of output power, and can be used to drive a variety of loads, including DC motors, LED lighting systems, and high-voltage supplies.

The BQ2660-9R is an ideal DC DC converter for applications that require an adjustable output voltage range, high efficiency, and a wide input range of 3.3-20 VDC. Its adjustable switching frequency allows it to match the needs of various applications, as well as provide a significant improvement in efficiency. The inclusion of a current-sensing circuit provides enhanced short-circuit protection, while its high output power of up to 80W means it can be used in a wide variety of applications. As such, the BQ2660-9R is an excellent choice for those looking for a reliable, high-performance DC DC converter.

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