Simple, self-powered two-terminal devices automatically and
safely eliminate losses in power-supply EMI filters
SAN JOSE, Calif.--(BUSINESS WIRE)--
Power Integrations (NASDAQ: POWI),
the leader in high-voltage integrated circuits for energy-efficient
power conversion, today announced that its CAPZero™
family of innovative, two-terminal, automatic X-capacitor discharge ICs
has been certified to meet IEC
62368, the new over-arching safety standard covering TVs and IT
equipment. The CAPZero
family eliminates power losses while allowing power supplies to comply
with safety standards. The new standard replaces IEC 60950 and IEC 60065
and will become mandatory.
CAPZero ICs
are smart, high-voltage switches that are placed in series with the
resistors used to provide a safe discharge path for a power supply’s X
capacitor. Without this switching mechanism, these discharge resistors
cause a constant power drain while AC is connected and therefore
contribute significantly to no-load and standby input power consumption. CAPZero
X-capacitor discharge ICs block current flow to the
discharge resistors when AC voltage is applied, cutting the power wasted
in these components to zero. When the AC voltage is disconnected, CAPZero automatically
and safely discharges the X capacitor by closing the circuit and
directing the energy away from the exposed AC plug.
Comments
Edward Ong
, product marketing manager at Power
Integrations: "Once the new standards reach a mandatory phase,
mains-voltage electrical equipment must carry the IEC 62368
certification. CAPZero ICs
are certified to the new standard and deliver a simple, cost-effective
solution to eliminate discharge resistor loss while requiring minimal
modification to system or PCB layout. This approach allows engineers
total flexibility in their choice of the X capacitor used, optimizing
differential-mode EMI filtering and providing a highly cost-effective
option for designers optimizing no-load consumption, power factor, and
EMI, as well as meeting the most up to date safety regulations.”
CAPZero
ICs can be used before or after the system input fuse, as the innovative
X-capacitor discharge ICs inherently meet international safety standards
for all open- and short-circuit fault tests. Devices are suitable for
all AC-DC converters with X capacitors, and are available with 825 V or
1000 V MOSFETs to support a variety of power supply design needs.
Applications include PCs, servers/workstations, monitors and TVs,
printers and notebooks, appliances requiring
ErP Lot
6 compliance, and
adapters requiring ultra-low no-load consumption.
CAPZero ICs
are available now in an SO-8 package priced at $0.40 each in
10,000-piece quantities. Product datasheet, design ideas, and
introductory video are available now on the Power Integrations website
at www.powerint.com/en/products/capzero-family/capzero.
Power
Integrations, Inc., is a Silicon Valley-based supplier of
high-performance electronic components used in high-voltage
power-conversion systems. The company’s integrated circuits and diodes
enable compact, energy-efficient AC-DC power supplies for a vast range
of electronic products including mobile devices, TVs, PCs, appliances,
smart utility meters and LED lights. CONCEPT IGBT driver systems
enhance the efficiency, reliability and cost of high-power applications
such as industrial motor drives, solar and wind energy systems, electric
vehicles and high-voltage DC transmission. Since its introduction in
1998, Power Integrations’ EcoSmart® energy-efficiency
technology has prevented billions of dollars’ worth of energy waste and
millions of tons of carbon emissions. Reflecting the environmental
benefits of the company’s products, Power Integrations’ stock is
included in the NASDAQ® Clean Edge® Green Energy
Index, The Cleantech Index®, and the Ardour Global IndexSM.
For more information, including design-support tools and resources,
please visit www.powerint.com;
visit Power Integrations’ Green
Room for a comprehensive guide to energy-efficiency standards around
the world.
Power Integrations, CAPZero, EcoSmart, and the Power Integrations
logo are trademarks or registered trademarks of Power Integrations, Inc.
All other trademarks are the property of their respective owners.
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Source: Power Integrations