Hybrid/48V EV
[Allegro MicroSystems, LLC] solutions are commonly used in battery monitoring and OBCs, DC/DC converters and regulators, BLDC gate drivers and more. Benefits like ADAS and automomous vehicles, including ISO 26262...
Brushless DC drivers [Allegro MicroSystems, LLC]
Really quiet. Easy to implement. Extremely efficient. Allegro’s QuietMotion family offers the first-to-market (FOC) brushless DC (BLDC) controllers that are customer code-free. Short to two weeks design cycle time with simple GUI.
Evaluation board speed up the design cycle time
Besides sample, we have field application engineers (FAEs) to provide evaluation board to our customers. As well as assist to product development.
A.I. Robots helps in Covid-19
Servicing robots requires a bundle of joint moment by [Allegro MicroSystems, LLC]'s current sensor and hall latches.
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about us
Richwood Electronics Co., Ltd. was founded in 1990, as an electronics component Representatives/Distributors. We aim to create new opportunities by introducing the state-of-art technology and products to customers in Hong Kong, China and the Philippines. To so do, Richwood offers a one-stop total solution to facilitate design and reduce substantial development life cycle and cost.
In recent years, given the US-China trade wars, Richwood also serves as an Asia stocking warehouse and provide quality control and logistics services. This greatly reduces tariffs and shortens the lead-time to delivery products to customers.
Jan 2019
BLDC FOC
Allegro's AMT49406 is a 3-phase, sensorless, brushless DC (BLDC) motor driver (gate driver) which can operate from 5.5 to 50 V—Allegro’s first QuietMotion solution. The AMT49406 is ideal for ceiling fans, pedestal fans, bathroom exhaust fans and home appliance fans and pumps. This device will provide reliable, efficient and low audible noise performance while greatly simplifying design.
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March 2020
>200A precise current measurements
The world’s first standalone Hall-based coreless current sensor. The Allegro ACS37612 measures currents from 200A to >1000A flowing through a PCB or a busbar with a typical accuracy of 1%—and without requiring a magnetic concentrator core or a shield.
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Jan 2020
SiC Schottky Diodes
SemiQ (previously Global Power Technologies Group) has released to production of its new 3rd generation silicon carbide (SiC) diode family featuring blocking voltages of 650V, 1200V and 1700V with forward current 8A up to 50A per chip.
These Gen-3 products represent a huge improvement in reliability, device ruggedness, surge current capability, and moisture resistance. Extensive qualification testing includes over eight million device hours of HTRB and H3TRB.
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Jan 2020
SiC Diode SOT-227
SiC Schottky Diode Modules from SemiQ operate with zero switching loss to greatly increase efficiency and reducing heat dissipation and requiring smaller heatsinks. These benefits make these products ideal for applications in Power Supplies for DC power equipment, Rectifier for induction heating, Welding equipment, High temperature environments and more.
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Authorized Representative/Distributionship
