78HT265HC

DC-DC converters are electrical devices that convert direct current into another level or form of direct current. One example of these converters is the 78HT265HC, which is used in industrial and commercial applications. This article will focus on the application field and working principle of the 78HT265HC.

The 78HT265HC is a fully regulated, medium current DC-DC converter. It is designed for use in high-end industrial and commercial applications, such as in test and measurement equipment, audio and video equipment, and computer peripherals. The unit is capable of delivering up to 20A of current, making it well-suited for many applications that require high current delivery. It has a wide operating temperature range, low output voltage ripple, and high input/output isolation.

The 78HT265HC is a switching power supply, meaning it uses a switching regulator to constantly adjust its output voltage to maintain a constant voltage level despite any variations in input voltage. It also includes short circuit protection, thermal protection, and overvoltage protection. This makes it suitable for many kinds of environmental conditions.

The 78HT265HC operates by taking an AC input (usually a rectified voltage waveform) and converting it to the desired DC output. A switching regulator is then used to maintain the desired output voltage. The regulator is powered by an internal electromagnetic pulse transformer, which has two windings. The primary winding is controlled by a pulse width modulation circuit, which produces a series of pulses of varying widths, depending on the desired output voltage. The width of the pulses varies depending on the voltage differences between the AC input and the desired DC output. The secondary winding is connected to the output of the converter, which then supplies the desired DC output.

The 78HT265HC can operate at high switching frequencies, up to MHz, and its input voltage can range from 16.8V to 27V. The 78HT265HC also features low noise operation, with a maximum of 65mV peak-to-peak output voltage ripple. It has a wide temperature range operating from -40°C to 85°C, and the output range is adjustable from 0.8V to 3.3V.

The 78HT265HC is a versatile and reliable DC-DC converter, offering high efficiency and high current delivery for a variety of applications. Its wide temperature range and overload protection make it suitable for many kinds of environments. The combination of its high performance and reasonably small size makes it an ideal choice for industrial and commercial applications.