IBS Electronics

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Active Electronic Components

Active Products Parts:

 
  1. DC/DC Converters
  2. LCD Panels/Monitors
  
  1. Memory
  2. Opto-electronics
  
  1. Semiconductors
  2. Surge Arresters

Diodes Bridge rectifiers:

IBS Electronics distributes a wide range of active electronic components like Microcontrollers, Amplifiers, A2D and D2A converters, Clock & Timing devices, Data devices, Diodes, Embedded Devices, Interface, Logic ICs, Memory devices, Multiplexers, Power management devices, Temperature sensors, Transistors and Voltage regulators.
We are an authorized distributor of many active electronic components lines including transistors, diodes, LEDs, other discrete semiconductors, in addition to ICs, and optoelectronics, as well as passives, circuit protection, interconnects, wire and cable, electromechanical, sensors, enclosures and thermal management, power sources, test, tools, and specialty products.

A rectifier is an electronic circuit that converts an input AC voltage into a DC voltage at the output terminal, known as the rectified output voltage. Rectifiers are primarily used in power supplies to provide the DC voltage necessary for electronic devices to operate.

Rectifiers are categorized into two types based on their operation:

  1. Half-Wave Rectifiers
  2. Full-Wave Rectifiers

Diodes Bridge rectifiers are discrete semiconductors that convert an input AC current into a DC current as an output. Bridge rectifiers feature four diodes in a bridge configuration that provides the same polarity of output voltage for either polarity of input voltage. A bridge rectifier provides full-wave rectification from a two-wire AC input, offering lower cost and weight compared to a rectifier with a 3-wire input from a transformer with a center-tapped secondary winding. They are used in a variety of applications, including portable electronic devices, switching power supplies, home appliances, and white goods.

Many electronic circuits require a rectified DC power supply to operate various components from the available AC mains supply. Rectifiers convert AC power to DC power, with the bridge rectifier being the most efficient rectifier circuit.

Ideal diode bridge controllers replace the four diodes in a full-wave bridge rectifier with low-loss MOSFETs to significantly reduce power dissipation, heat generation, and voltage drop. The traditional Schottky diode bridge rectifier is commonly used for full-wave AC-to-DC rectification and DC polarity correction, but the ~0.6 V drop of each diode results in power dissipation (1.2 W per ampere), heat radiation, increased ambient temperature, and complicated thermal design. At low input voltages, the voltage drops reduce the available voltage for downstream DC-to-DC converters. Ideal diode bridges minimize or eliminate the need for heat sinking, shrinking the overall footprint and providing significant cost savings.

Bridge rectifier diodes are widely used in the front-end of power conversion systems. Our diodes feature a high 1200 V reverse voltage and a 1500 V peak specification for non-repetitive transients, ensuring compatibility with most mains supplies.

Advantages

  • Higher Efficiency: Bridge rectifiers are more efficient than half-wave rectifiers. While the efficiency is the same as center-tapped full-wave rectifiers, bridge rectifiers offer smoother DC output signals.
  • Full Utilization of AC Signal: Unlike half-wave rectifiers, which only use half of the input AC signal and waste the other half, bridge rectifiers allow current during both positive and negative half-cycles of the AC signal. This results in an output DC signal that is nearly equal to the input AC signal.

Disadvantages

  • Complex Circuitry: Bridge rectifiers are more complex compared to half-wave and center-tapped full-wave rectifiers, using four diodes instead of two.
  • Higher Voltage Drop: The use of more diodes results in higher power loss. In a center-tapped full-wave rectifier, only one diode conducts during each half-cycle, whereas in a bridge rectifier, two diodes in series conduct during each half-cycle, leading to a higher voltage drop.