Tamura Power Module ~ Five Improvements
Improvements
Power Modules
Tamura Corporation of America
www.tamuracorp.com
1040 South Andreasen Dr. Ste 100 Escondido, CA 92029
1-800-472-6624
1
Standby Power
Power Modules
Complied with energy star (standby power requirements)
Improved Efficient Standby Power
Tamura Corporation of America
www.tamuracorp.com
1040 South Andreasen Dr. Ste 100 Escondido, CA 92029
1-800-472-6624
2
Burst Mode
With Tamura’s original tech-
nology, EPM , SPM , BPM
power modules can reduce
noise from the power source
up to 1/10
(comparison to our discrete
component)
*Patent Pending
Noise
Reduction
Power Modules
Efficiency is the key for high performance power supply. To achieve this, switching method
is selected as for appropriate solution. The switching frequency is most like to be 30 to
150KHz. To improve efficiency more at low load, it is used to apply “ burst mode” . Burst
mode frequency is within the audible frequency band; power supply would generate audi-
ble noise at low load with Standby Mode, and it is needed to be minimized. Mostly the
roots of the audible noise was created by switching transfer. And depends on that struc-
tures, the level of noise would be changed.
Tamura Corporation of America
www.tamuracorp.com
1040 South Andreasen Dr. Ste 100 Escondido, CA 92029
1-800-472-6624
3
Reference with
Primary
PCB
Replacement
Secondary
Parts
Total
EPM
Discrete
6
26
1
1
3
11
10
38
Procure less parts/material
29 : 1
Discrete Component : 29 parts needed
Power Module : only 1 part needed
Availability
Power Modules
Efficiency is the key for high performance power supply. To achieve this, switching method
is selected as for appropriate solution. The switching frequency is most like to be 30 to
150KHz. To improve efficiency more at low load, it is used to apply “ burst mode” . Burst
mode frequency is within the audible frequency band; power supply would generate audi-
ble noise at low load with Standby Mode, and it is needed to be minimized. Mostly the
roots of the audible noise was created by switching transfer. And depends on that struc-
tures, the level of noise would be changed.
Tamura Corporation of America
www.tamuracorp.com
1040 South Andreasen Dr. Ste 100 Escondido, CA 92029
1-800-472-6624
4
Equivalent function with EPM
Discrete Component
EPM
S = 38mm x 53 mm
=
2014
S = 38mm x 31 mm
=
1023
mm²
mm²
1/2 Size
Compact
Form
Power Modules
Tamura Corporation of America
www.tamuracorp.com
1040 South Andreasen Dr. Ste 100 Escondido, CA 92029
1-800-472-6624
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
