DD61S14KKHPSA1

The DD61S14KKHPSA1 is a rectifier array that is common within the electronics industry. It is a thin film monolithic device that provides six diodes in a small package, with a total length of 1.45 inches. Another common term for this device is a bridge rectifier array.

The primary application field of the DD61S14KKHPSA1 is power rectification and motor control. These applications require their power sources to be in a DC format, thus the bridge rectifier array is typically used to convert AC to DC. The DD61S14KKHPSA1 offers a high level of performance superlative to standard rectifier arrays, with the maximum forward voltage drop being measured at 0.5 volts.

Working Principle

A bridge rectifier array by itself cannot convert an AC voltage into DC voltage. It requires external components such as smoothing capacitors, inductors, and resistors which used to control the current at the input and output of the bridge rectifier array.

At the most fundamental level, a bridge rectifier array works in the following way. If an AC voltage is provided at the input, then the DD61S14KKHPSA1 will allow the current to flow through it, thereby allowing the output voltage to continuously oscillate between the two supply rails.

More specifically, during the positive half-cycle of the AC input voltage, the two diodes in the array will conduct current, with the current first flowing through the two current- limiting resistors. The resultant DC voltage at the bridge rectifier output will be the sum of the positive half-cycle of the AC input voltage plus the forward voltages of the two diodes.

During the negative half-cycle of the AC input voltage, the two remaining diodes will conduct current, with the current first flowing through the two current-limiting resistors in reverse. The resultant DC voltage at the bridge rectifier output will be the magnitude of the negative half-cycle of the AC input voltage plus the forward voltages of the two diodes.

The two capacitors that are connected to the bridge rectifier output act as a filter, because they will store any excess energy that is generated during the positive half-cycles, and release it during the negative half-cycles. This ensures that the output voltage is in a DC format.