Sanken Electric has launched the CWA Series universal switching
power supplies (six models with 15 variations) featuring circuit architectures
optimized for individual output power ranges. Also featuring compact,
low-cost design, the products have been developed and manufactured
at Sanken Indonesia, one of Sanken's several overseas manufacturing
sites. Shipping commenced on June 15.
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| 1. Overview |
| The CWA Series is Sanken's new family of universal switching
power supplies featuring a single output and open-frame PCB. In order
to optimize supply power for different load conditions, the devices
employ circuit architectures optimized for specific output power ranges.
In addition, the CWA Series models are available in sizes and price
ranges around 10% and 15% lower than those of Sanken's previous models,
respectively. |
| Most conventional switching power supplies employ a
consistent circuit architecture across the entire range of products
in order to minimize design effort and costs. In contrast, the CWA
Series products employ a low-cost, non-resonant regulation system
for low to medium output power models, and a resonant regulation system
with PFC for higher output power models where suppression of higher
harmonic components is critical. The result is outstanding overall
cost effectiveness. Featuring a continuously adjustable line input
voltage range of 85-264 VAC, the CWA-Series products are certain to
be well received worldwide (U.S.A., European and Asian markets), as
well as within Japan. |
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| 2. Supply Solutions Offered in Conjunction with Sanken's
Semiconductor Division Products |
| Financial data terminals, printers, bill recognition
machines, electronic scales, and other similar devices often require
two separate DC power supplies: 12 or 24 VDC for the electromechanical
drivers and 5 VDC for the logic circuitry that is actively changed
to CMOS with size reduction. However, there are few universal power
supplies available which support dual DC output of such voltages.
Custom power supplies involve additional costs, increased development
overhead, the need for dissimilar models, and other drawbacks. Most
customers employ commercial DC/DC converters or their own in-house
power supplies for the 5-VDC source, which in turn require additional
design and development effort. Sanken's Semiconductor Devices Division
has a lineup of ICs for logic circuit power supply, the SI Series.
In the early sales and system design stages, we can suggest to our
customers that they use SI-Series logic power supplies in conjunction
with CWA-Series products. This can simplify their power supply designs,
reduce system size, cost, and engineering effort, offering complete
users' solutions. |
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| ¨ Product Lineup |
|
Model
|
Output Power
|
Output Voltage
|
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3.3V
|
5V
|
12V
|
24V
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CWA015
|
15W
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RCC system
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CWA030
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30W
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Flyback system
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CWA050
|
50W
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Flyback system
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CWA075
|
75W
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FCC system (passive PFC)
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Resonant system (active PFC)
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CWA100
|
100W
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Same as 075
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CWA150
|
150W
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Same as 075
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| Notes: |
1) Versions marked with "
" will be added to the range in
the future. |
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2) The bottom cell in each row indicates
the circuit architecture; items given in parentheses indicate
the PFC type. |
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3) A 300-W system design model will be available
in the near future. |
|
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| 3. Applications |
(1) Computer peripherals: Printers, terminal devices,
financial data terminals, POS, MO devices, etc.
(2) Communication terminals: Routers, hubs, modems, games systems,
and factory automation and control equipment |
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| 4. Projected Retail Prices |
|
CWA015
|
¥2,780
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CWA030
|
¥3,600
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CWA050
|
¥4,600
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CWA075
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¥5,800
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CWA100
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¥7,400
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CWA150
|
¥9,800
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| 5. Sales Plan: 300 million (84 terms: June 2000 to March
2001) |
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| 6. Features |
(1)
|
Continuously variable
line input voltage (85-264 VAC)
* The 75-, 100-, and 150-W models feature automatic switching of the
output voltage between 3.3 V and 5 V. |
| (2) |
The 75-W model and above are
equipped with the PFC (harmonic current suppression). |
(3)
|
Peak current handling
capability: The 75-W model and above with 12- and 24-V rated output
voltages have the capability to handle peak currents approximately
130% or more of the rated output current. |
| (4) |
Terminal noise
voltage: Complies with the requirements of the VCCI Class-B, FCC Class-B,
CISPR Class-B standards. |
| (5) |
CE Marking compliant
(low-voltage directives) |
(6)
|
Safety standards
Compliance with the UL1950, CSA950, EN60950 (under application), and
Electrical Appliance and Material Control Law. |
(7)
|
Charge-free warranty
period: One year |
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