CDBA1150-HF Discrete Semiconductor Products

CDBA1150-HF is a single-phase dual-chip power diode bridge rectifier with commonly used application fields in power supply, charger and lighting device. This device has plenty of advantages that make it an irreplaceable rectifier such as reverse voltage blocking, low on-state voltage (VTM) and low thermal resistance.

The CDBA1150-HF is a single-phase dual-chip power diode bridge rectifier with each chip being a diode bridge rectifier. The device is mainly used in most transducer-type rectification systems using AC power sources. The two separate chips in each CDBA1150-HF device have 2 distinct parts: a positive side diode bridge and a negative side diode bridge. The positive side diode bridge acts as a current rectifier for positive waveforms (positive half cycles), or it directs current in a single direction. The negative side diode bridge is similar to a positive side diode bridge but is used for negative waveforms (negative half cycles).

When AC power is applied from an AC power source and the 2-phase waveform enters the positive diode bridge, the device conducts current during positive half cycles and blocks current during negative half cycles. On the negative diode bridge, the device blocks current during the positive half cycleand conducts current during the negative half cycle.

The CDBA1150-HF uses a square wave rectification technique to convert AC energy into DC energy. This method has several advantages over more traditional diode bridge rectification methods that include higher current carrying capacity, lower power dissipation and a reduction in electrical noise. The basic working principle of a CDBA1150-HF device is simple. When an alternating current is applied to the device, the forward voltage drop of each diode will effectively evaluate the waveform into a square waveform. The current will then flow through the diodes in each bridge in only one direction. This type of rectification eliminates harmonic distortion in the load, making it ideal for use in audio power amplifiers and other harmonic sensitive circuits.

The CDBA1150-HF is a very cost-effective and simple single-phase dual-chip diode bridge rectifier device, offering a high-performance alternative to bulky and expensive three-phase rectifiers. While its performance may be limited when compared to larger rectifiers, its cost savings, size, and versatility make it invaluable in a variety of power supply and charger applications.