Santa Clara, CA and Kyoto, Japan, July 12, 2022 (GLOBE NEWSWIRE) — ROHM Semiconductor immediately introduced its fourth era 650V quick restoration diodes (FRDs), the RFL/RFS Series, that includes low ahead voltage (VF) and quick reverse restoration time (trr), respectively, in addition to ultra-low noise traits. The new units are perfect for industrial and client gear that deal with giant quantities of energy, similar to air conditioners and EV charging stations.
In current years, more practical use of electrical energy is important to deal with the rise in international energy consumption. This is very true for white items and industrial gear that deal with giant quantities of energy, similar to EV charging stations. These require not solely excessive electrical effectivity, but additionally decreasing workload for noise countermeasures in circuit design. In response, ROHM developed diodes that mix low VF for extra environment friendly operation with quick trr traits that present much less loss and ultra-low noise throughout switching OFF.
Optimizing the machine construction and supplies permits the RFL/RFS Series to realize the optimum steadiness of VF and trr, that are necessary traits for FRDs, however are in a trade-off relationship. The low VF RFL sequence reduces VF by roughly 3.2% and trr by about 8.3% over the standard RFN sequence, whereas the high-speed RFS sequence decreases VF by roughly 17.9% versus the standard RFUH sequence. Both merchandise contribute to increased energy provide effectivity by optimum design based mostly on circuit necessities. Furthermore, ultra-low noise diode restoration traits are achieved – they assist to scale back each workload and elements for noise.
Going ahead, ROHM will proceed to develop the package deal lineup of the RFL/RFS sequence to offer automotive assist whereas increasing applicability by decreasing energy consumption.
Applications
- PFC (Power Factor Correction) circuits in air conditioners, washers, fridges, and so forth.
- Secondary rectifier circuits in EV charging stations and the like
- Inverter circuits in machine software robots, compressors, and so forth.
- Power provides for servers, base stations, and extra
Topology Selection
When designing energy provide circuits, it’s obligatory to pick out a circuit configuration (topology) that matches the required specs for enter/output voltages, energy, isolation, and different components. ROHM provides a range web page that recommends the optimum merchandise for varied topologies.
https://www.rohm.com/topology
Pricing: $5.14/unit (samples, excluding tax)
Availability: Now (in mass manufacturing)
Available for buy by on-line distributors Digi-Key, Mouser, and Farnell.
Terminology: VF / trr Characteristics
- VF (ahead voltage) is the voltage between the diode terminals generated from present move within the ahead course. The decrease this worth, the extra environment friendly software operation.
- trr (Reverse Recovery Time) is the time it takes to change from the ON state to fully OFF. The decrease this worth is, the smaller the loss throughout switching.
- VF and trr are key traits associated to diode loss and are in a trade-off relationship.
For extra data, please go to www.rohm.com.
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- RFL/RFS Series Diodes
