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Power Supplies(HKTDC Electronic Components & Parts, Vol 03,2005)

Hong Kong Electronic Components & Parts

Vol 3, 2005





Product Features

Diodes & Transistors
Miniature Marvels

Power Supplies
Essential Energy

Switches
Clever Controls

Power Supplies

Essential Energy

Photo
Lik Fung Electrical (HK) Industries Co Ltd's Lingqi-brand DC/AC power inverters mainly cater to the US and Japanese markets
Size is king when it comes to consumer and industrial electronic products - and power supplies are no exception. As a result, switching power supplies that offer greater reliability and lower power consumption are gaining in importance among Hong Kong manufacturers.

"There is an increasing demand for higher efficiency with low standby power consumption and decreased EMI as form factors in consumer products become increasingly smaller," observes Victor Electronics Ltd general manager Y. K. Lau.

Founded in 1993, the company provides a range of DC/DC converters including single output 12 and 24 volt power modules, fully isolated half-bricks with up to 75 watts output and multiple output power blocks with up to 450 watts output.

"Our DC/DC converters are used where an isolated 12 or 24 volt DC is essential, while the VP power boxes are used to drive stepper motors and servo motors or for any equipment requiring more than 56 volts DC," explains Lau. "The VH48 series of half-bricks is used for telecommunications systems and cellular phone base stations."

Victor, which also has its own Victor brand, manufactures at a 75,000-square-foot, ISO 9000-certified facility in Dongguan on the Chinese mainland and delivers minimum orders of 10 sets 10 weeks after order confirmation.

Lik Fung Electrical (HK) Industries Co Ltd, meanwhile, provides most of its Lingqi range of DC/AC power inverters ranging from 50 watts to 3,500 watts to the Japanese and US markets.

"Inverters in the 300-500 watt range are currently strong sellers," says general manager Lorine Lo. "Camcorders, microwaves and white goods are among the most popular applications for these products."

The 10-year-old company's inverters feature fully intelligent controllers that can adapt to advanced CPUs and deliver 90% efficiency. "Quality is important for us, both in sourcing materials and producing products," adds Lo.

Lik Fung's ISO 9001-certified, 1,000-square-metre factory in Foshan on the mainland requires no minimum orders and has a delivery time of 25 days after order confirmation.

"One emerging trend in the market is the use of an inverter to link with a car battery to power another device or charge a battery as well as a smaller yet powerful inverter for a car cigarette lighter," Lo explains. "We are also developing a more powerful inverter up to 5,000 watts."

Compact low-profile switching power supplies ranging from 100-5,000 milliamps with both single and multiple outputs that meet CE standards are a speciality of Hop Wo Enterprise Ltd, which also produces TUV-certified AC/DC adaptors.

The 22-year-old company manufactures both products at a 3,000-square-metre mainland factory in Shenzhen that is capable of producing 50,000 power supplies per month.

Hop Wo demands minimum orders of 1,000-2,000 pieces for larger units and 5,000 for smaller items and delivers within 30 days of order confirmation.

Its most popular products range from 1,000-2,000 milliamps and are used in LCD monitors and LCD television sets in Europe and the US, company spokeswoman Angela Chu says.

"The market is moving from linear power transformers to switching power supplies because of a demand for greater efficiency," claims Chu, adding that Hop Wo has its own H brand. "We offer high efficiency, compact and reasonably-priced power supplies."

Hung Kay Industrial Co Ltd, meanwhile, prides itself on supplying companies worldwide with power and signal transformers, AC/AC and AC/DC adaptors and switching power supplies for a variety of consumer products, including MP3 players, shavers, table lamps and LCD monitors.

The 25-year-old company supplies numerous leading brands including Sanyo, Remington, Aiwa and Compaq, claims sales executive Victor Yip.

"Every single item is carefully inspected and tested during each phase of the manufacturing process to conform to global safety standards," he explains. "We have obtained worldwide safety approvals such as UL/C-UL, CSA, GS (KEMA), CE, BEAB (BS), SAA (Australia) and T-Mark (Japan)."

Hung Kay's ISO 9001-certified factory in Dongguan has a 1.5 million-plus monthly production capacity, requires no minimum orders and delivers 10-14 days after confirmation.

Europe and the US are equally important markets for Far East Electronics Co, which also supplies manufacturers in Asia with a range of power supplies, transformers and adaptors.

"As our products are compliant with PSE, CE and UL safety standards, we have enjoyed success in Europe and the US," says manager Shea Kong Leung.

The company, which has its own FE brand, has an 80,000-square-foot factory in Dongguan capable of producing 100,000 power supplies per month. Far East's products are available in minimum orders of 2,000 pieces, with delivery 10-15 days after order confirmation.

Obviously, the future looks bright for Hong Kong power supplies manufacturers, who are determined to power ahead and grab a greater share of the global market.

WRITTEN BY JOHN CASEY

Contact Details

Far East Electronics Co
Flat O, 16/F, Shield Ind Centre
84-92 Chai Wan Kok St, Tsuen Wan
New Territories, Hong Kong
Tel: 852-2492-8171
Fax: 852-2411-2149
Email: fareast234@yahoo.com.hk

Hop Wo Enterprise Ltd
10/F, Blk K, Wah Lik Ind Centre
459-469 Castle Peak Rd, Tsuen Wan
New Territories, Hong Kong
Tel: 852-2416-1138
Fax: 852-2416-2390
Email: hopwoent@netvigator.com
Web: www.hopwoentltd.com.hk

Hung Kay Industrial Co Ltd
Rms 2509-10, Mega Trade Centre
1 Mei Wan St, Tsuen Wan
New Territories, Hong Kong
Tel: 852-2411-2280
Fax: 852-2413-1073
Email: sandy@hung-kay.com.hk
Web: www.hung-kay.com.hk

Lik Fung Electrical (HK) Industries Co Ltd
Rm 1410, Hai Phong Mansion
53 Hai Phong Rd, Tsim Sha Tsui
Kowloon, Hong Kong
Tel: 852-2127-7430
Fax: 852-2121-8575
Email: likfungele@biznetvigator.com
Web: www.likfunghk.com

Victor Electronics Ltd
Rm 1309, World Wide Ind Centre
43-47 Shan Mei St, Fo Tan
New Territories, Hong Kong
Tel: 852-2687-1238
Fax: 852-2687-1123
Email: saleseng@victorhongkong.com
Web: www.victoronics.com

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