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Application Scenario: SMPS (Switched-Mode Power Supply) Bridge Rectifier
The MURB1620CTT4G is commonly used in the bridge rectification stage of SMPS units, where AC input is converted to DC output. Its ultra-fast recovery time and low forward voltage drop make it ideal for improving efficiency in power supplies for consumer electronics, telecommunications equipment, and computer systems.
Parameter Features
- Reverse Voltage: Rated for high reverse voltages, typically up to 200V, accommodating a wide range of AC input voltages.
- Forward Current: High average forward current capacity, often in the range of 16A, suitable for high-power applications.
- Recovery Time: Ultra-fast recovery time, minimizing power loss during the transition from conducting to blocking state.
- Configuration: Dual diode common cathode configuration, facilitating its use in full-wave bridge rectification circuits.
Detailed Circuit Connection for SMPS Bridge Rectifier
AC Input to Diode Bridge
- AC Line Connection: Connect the AC input lines to two separate diodes within the MURB1620CTT4G package, utilizing the dual-diode configuration for the bridge rectifier's input.
DC Output Configuration
- Common Cathode to DC Output: Utilize the common cathode connection of the MURB1620CTT4G (typically the center pin or tab) as the positive output of the bridge rectifier, connecting it to the positive rail of the subsequent filtering and regulation stages.
- Anode Pins to Ground: Connect the anode pins of the MURB1620CTT4G to the ground or negative side of the circuit, completing the bridge rectifier configuration.
Heat Dissipation Measures
- Heat Sink Attachment: Given the high forward current capability and power dissipation during operation, attach the MURB1620CTT4G to an adequately sized heat sink to ensure thermal stability and prevent overheating.
Filtering Capacitor Connection
- Capacitor Across Output: Place a bulk capacitor across the DC output (positive to the common cathode, negative to ground) to smooth out the rectified DC, reducing ripple voltage and improving the quality of the DC supply.
Design Considerations
- Thermal Management: Ensure proper thermal management by selecting an appropriate heat sink and considering airflow around the MURB1620CTT4G to maintain operational temperatures within specified limits.
- Reverse Voltage Protection: Verify that the peak reverse voltage rating of the MURB1620CTT4G exceeds the maximum expected AC input voltage, including any potential surges or transients.
- PCB Layout: Optimize the PCB layout to minimize trace lengths between the MURB1620CTT4G, the AC input, and the filtering capacitors, reducing parasitic inductances and resistance, which can affect performance.
- Component Selection: Choose filtering capacitors and subsequent regulation stage components that complement the high efficiency and fast switching characteristics of the MURB1620CTT4G, ensuring overall power supply performance and reliability.
Incorporating the MURB1620CTT4G into the bridge rectifier stage of an SMPS enhances the efficiency and reliability of the power supply, making it an excellent choice for demanding applications requiring fast switching and minimal power loss.
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MURB1620CTT4G we delivered, we will accept the replacement or return of the MURB1620CTT4G only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of MURB1620CTT4G.
(3)The PartNo is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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