tamura power modules
TRANSCRIPT
TAMURA Power Modules ?
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Table of Contents
Five Key advantage P2Stand- Power (efficiency) P3Noise reduction P4Supply Chain Management P5Size improvement P6Time to market P7Product Lineup P8Functions P9External Dimensions
EPM P10SPM P11BPM P12
Key Features / Applications P13Example of Mounting P14
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① Improve Efficiency
② Improve Noise
③ Improve SCM
④ Improve Form-Factor
⑤ Improve time to market
Five Key advantage
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① Improve Stand-by Power
Compliance with standby energy regulations (Example: EPM0510SJ)
0
50
100
150
100 150 200 250 300 350 400 450
Input Voltage (VDC)
Eu CoC regulations (Tier 1) to be enforced in 2015USA DoE regulations to be enforced in 2015Eu CoC regulations (Tier 2) to be enforced in 2017EPM0510SJ
150mW
100mW
75mW
EPM0510SJ
Complying with energy
regulations …
ImprovingEnergy
efficiency…
Concerns about Energy Efficiency…
Standby Energy (mW)
Solution !!
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② Improve Audible Noise level
Humming sound is reduced by Tamura’s unique structure.
Is there a way to reduce it?
We want toreduce humming sound in power
supply.
Concerns about Noise and Vibration Sound …
dB
20Hz 20kHzAudio frequency range
Conventional Power Supply
Power module
Humming sound reduced to Max 1/60
(Comparison with Tamura’s previous Power Module)
Solution !!
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③ Easy Management
We want to simplify component management.
Management of discontinued components is troublesome.
Component Management is Troublesome … Concerns about Component Management …
Primary sideReplaced�
components Secondary�side TOTAL
EPM 6 1 3 10Discrete�
component 26 1 11 38
(Example: Substrate sample)
When discrete components are used, 29 components need to be prepared.
When the power supply module is used,
1 component needs to be prepared!
A comparison of the number of components
29：1(Comparison with Tamura’s previous Power Module)
Solution !!
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④ Compact Form-Factor
Substrates should be as small as possible…
What should we do …?
Mounting spaceis limited.
Concerns about Size …
S=33mm X 31mm=1023mm2
S=38mm X 53mm =2014mm2
EPMDiscrete components having the same functions as EPM
Area ratio
1：2
(Comparison with Tamura’s previous Power Module)
Solution !!
50%�Less!!
���
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0 20 40 60 80 100
80
⑤ Facilitates Circuit Design
Product development
cycle is short …
No human Resource areleft to design standby power
supplies.
Concerns about Time Required for Development/Design …
Development/design Human Resource can be reduced.
External component design
Transformer�design,�circuit�design,�control�IC�evaluation,�heat�release�design,�substrate�design,�EMI/EMC�evaluation,�application�for�approval�of�safety�standards,�component/material�arrangement�for�individual�prototypes,�etc.
Support provided by application note
External component design
Reduced by approx. 80%
(Comparison with Tamura’s previous Power Module)
Solution !!
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Product Lineup
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Functions
Internal parts and functions・ Insulation Transformer・ Isolated Transformer （FET）・ IC control・ Output rectifier diode・ Photo-coupler・ Output voltage detection circuit・ Primary side control circuit・ Over voltage protection・ Over current protection・ Heating protection circuit
Switching Power Supply can be easily created
PowerModule
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SPM External Dimensions
SPM Recommended Hole Diameter/Land Dimensions
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EPM External Dimensions
EPM Recommended Hole Diameter/Land Dimensions
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BPM External Dimensions
BPM Recommended Hole Diameter/Land Dimensions
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Consumer electronics, Information processing equipment, AV equipment ,Stand-by Power
１．Easy to design compact AC/DC due to small number of external components
２． Potential design evaluation time savings; EMC, open/short circuit testing, & etc.
３． Enables significant reduction in power consumption of no-load and light load
４． Corresponding world wide input and PFC output voltage
５． Unique Tamura design insures significant reduction in ‘buzz’ under light-load
conditions for lower noise level
Features
Applications
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Example of Application
http://www.tamura-ss.co.jp/electronics/en/