aluminum electrolytic capacitors specially designedfor led … · 2015-04-28 · aluminum...

Aluminum electrolytic capacitors specially designed for LED driver

---Ymin's professtional advantage comparing with Rubycon

Small Expert

www.sh-ymin.com

Yongming Electrolytic capacitor for LED Lighting in past 6 years,NO any quality and life issue.

Working life of yongming electrolytic capacitor in LED lighting:

Series LK LKF LKG LLK LKL

(High temperature)

Working life ≥10 years ≥15 years ≥20 years ≥30 years ≥10 years

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Provide the most powerful life guarantee for LED

Small Expert

Yongming Electrolytic capacitor for LED Lighting in past 6 years,NO any quality and life issue.

Working life of yongming electrolytic capacitor in LED lighting:

Series LKM LKX LKZ

Working life ≥15 years ≥20 years ≥30years

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Provide the most powerful life guarantee for LED

Small Expert

Question： Expecially in China Market, there are many problems in LED lamps in 2012 and 2013 such as life cannot meet the expected requirement, early failure rate is too high, because of that the capacitor quality cannot meet high requirement.

n Stability of LED driver is not enough at high temperature

n Reliability of LED driver and whole lamps is not enough

n Early failure rate of whole lamps is too high

n Life of whole lamps cannot meet the expected requirement

Present problems in LED lamps

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Small Expert

City Power AC AC/DCRectification

Drive Control Power Conversion

LED Lighting

By-pass drive control

Input rectifying filtering Output rectifying filtering

n Smoothly rectify input voltagenAbsorb ripple current from rectification circuitnAbsorb ripple current from LED drive circuit

n Decreasing AC factor of DC currentn Inhibit stroboscopic phenomenan Keeping stable current with larger capacitance e-cap

n Ripple current control in by-passingn Output noise decreasen Smaller capacitance change in life and stably output controlnAccurate IC control and output filter capacitor charge decrease

E-Cap's function, position and performance requirementin LED driver circuit

ØE-Cap properties: High Voltage, High Temperature, Larger Ripple Current, Low ESR, Long Life,Mini size

ØE-Cap properties: High Stability, High Temperature, Long Life,Mini Size

ØE-Cap properties: Larger Capacitance, High Temperature, Larger Ripple Current,Low ESR, Long Life, Mini size

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Small Expert

Item CFL Electronic Ballast LED Power Supply

Temperature High（75℃~105℃） High（55℃~85℃） High（70℃~110℃） Low（45℃~65℃）

Ripple current High （≈20mA/W） High（≈15mA/W） High（≈15mA/W） Low（≈8mA/W）

High frequency Low impedance no requirement No special

requirement

High frequency low impedance

（decrease nois and inhibit strobscopic phenomena）

different requirement in different power supply

anti-overload ability too high:large ripple current、 over voltage

High:large ripple current

high:large ripple current、over voltage

low:circuit protection is good

anti-hydration ability（low voltage e-cap） no requirement High high（high temperature、

large ripple current） low

Life

CFL life:10000 hrs E-cap life:

105℃10000 hrs

Electronic ballast life:

30000H~80000H E-cap life:

105℃8000H~12000H

LED life:30000~80000 hrs

E-cap life:105℃10000~20000hrs

Complete machine life:50000~100000 hrs

E-cap life:105℃5000~8000hrs

Size

Big4.7μF/400V，

Φ10*20 105℃10000hrs

BigUse 450V capacitors

Small 4.7μF/400V，

Φ8*12,105℃10000hrs

Small4.7μF/400V，

Φ8*12,105℃5000hrs

Different capacitor requirement of CFL, Ballast,LED and Power supply

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Small Expert

All the problems in LED driver

—— are caused by the low stability and short life when small-sized capacitors works in a high temperature and large ripple current environment.

Because:

n Two weak points in capacitor maufacturers：

1. Previous capacitor manufacturers for CFL and electronic ballast don't have too much technological and production experience after miniaturization of capacitor, expecially in the requirement of enduring high temeprature & large ripple current and long life

2.Previous capacitor manufacturers for power supply are not familiar with the capacitor's performance in lighting,like the high temperature,large ripple current and high requirement of overload.

n The technology of LED driver comes from integration of two kinds of technology,one is lighting technology, another is power supply technology.

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Small Expert

The confusion of LED lamp life

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1

Small Expert

In LED lighting, YMIN is more professional than Japanese R company:

n The electrical properties are more stable at high temperature

n The early failure rate is less

n Working life is much longer

n The size is much smaller based on same specification and same life.

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Small Expert

üYMIN’s more professional solution-- 14 years’ lighting experience

üYMIN’s more professional solution -- Raw materials

üYMIN’s more professional solution -- Process, Equipment

üYMIN’s more professional solution – Quality control

üYMIN’s more professional solution-- Application test

üThe standard capacitor test comparison between YMIN and Japanese R company

YMIN Electrolytic Capacitors---Specially Designed for LED Lighting

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Small Expert

invite international and domestic expert in capacitors area as our research and development consultant

Invite circuit design expert from lighting companies as our capacitor application consultant

Invite professional colleages in capacitor area like Shanghai Jiaotong University,Xi'an Jiaotong University as our technology support

R&D center consists of material basic research,structure research,process research and chemical research

Professional team for test approval on capacitor's reliability and application


2000-2002年

2003年

2004年

2009年

2010年

2012年

2013年

2014年

Capacitor Series Specially Designed For CFL and Electronic

ballast

Capacitor Series Specially Designed For LED（Low

Impedance）

NEW NEW

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Small Expert

invite international and domestic expert in capacitors area as our research and development consultant

Invite circuit design expert from lighting companies as our capacitor application consultant

Invite professional colleages in capacitor area like Shanghai Jiaotong University,Xi'an Jiaotong University as our technology support

R&D center consists of material basic research,structure research,process research and chemical research

Professional team for test approval on capacitor's reliability and application


2015

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Small Expert

• LKM NEW• 10V~500V• 2.2uF~6800uF• 105℃ 7000~10000hours Miniature large ripple current high frequency • Low ESR

• LKX NEW• 35DC~450VDC• 12uF~1000uF• 105℃ 7000~12000 hours Slim type horizontal installation large ripple current• High frequency

• LKZ NEW• 10V~500V• 2.2uF~6800uF• 105℃ long life large ripple current high frequency, low ESR

• LKJ NEW• 6.3V~100V• 0.47μF～ 3300μF 105 long life low ESR miniature product

Ø 14 years' experience in producing electrolytic capacitors for lightingØ 12 years ago, we developed our small-sized capacitors, these capacitors are mainly

used for small-sized long-life lamps of Philips,Osram, GE,Yankon,TCP,NVC.

Ø 7 years ago, we developed capacitors specially used for LED driver.

Ø The close cooperation with famous IC manufacturers such as PI,iWatt,NXP makes us know more about the capacitor performance and application requirement in LED driver circuit.

Ø We developed and applied 22 national patents for small-sized capacitors in enduring high temperature & large ripple current.

Ø Long-term test about realiability,stability at high temperautre and long life of capacitor used in LED indoor integration lamps. (including comparing test with international high-quality capacitors)

Double 85 test 100℃ approval test forLED driver

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4.7uf/400V 10*20 4.7uf/400V 8*16

4.7uf/400V 8*16 4.7uf/400V 8*11.5

YMIN’s more professional solution-- 14 years’ lighting experienceSmall Expert

1.High purity and soft Annode foil(Japanese original foil)Advantage：Ø Less heat at large ripple currentØ Lower capacitance decrease after long workingØ Higher stability at high temperature

2.High purity, high amylopectin structure formula special electrolyte(Japanese main chemical materials)Advantage：Ø Less heat at large ripple currentØ Higher stability at high temperatureØ Higher hydration resisting ability,longer life

No hydration on surface of foil Hydration on surface of foil

Comparing test after 5000 Hrs

Comparing test after 5000 Hrs

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YMIN’s more professional solution -- Raw materialsSmall Expert

3.Processed at high voltage,high purityDownlead(from Japanese company)Advantage：Ø Lower impedance and less heat at riveted point Ø Lower consumption of electrolyte in aging

processØ Reduce early failure rate,Increase capacitor life

4.Resin vulcanization butyl rubber,highsealing ability(from South Korea company)Advantage：Ø small consumption of electrolyte after long

working(high temperature\large ripple current)Ø Guarantee 105℃20000Hrs life in bad

environmentResin vulcanization

butyl rubbercommon rubber

Color oxide film on

surface of downlead

after voltage processing

Non-color oxide film on surface of normal downlead

YMIN’s more professional solution -- Raw materials

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Small Expert

Patents riveting technology: high hardness,low ESR, high reliability and uniformity of products

22 patents: ZL 2008 1 0201051.5、 ZL 2007 1 0045270.4、 ZL 2008 1 0201050.0、ZL 2009 1 0196995.2、 ZL 2010 2 0657951.3、 ZL 2008 2 0153684.9 ......

downlead

Riveting Point

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YMIN’s more professional solution -- Raw materialsSmall Expert

Aging separately Super High TemperatureMulti-voltage Aging Technology

Good uniformity High stability Good stability at high temperatureHigh anti-overload ability Low early failure rate

YMIN’s more professional solution -- Process, Equipment

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Small Expert

YMIN Cpk value larger than1.67Other company Cpk value larger than 1.33

DF

Lc

Other company Cpk value larger than1.33 YMIN Cpk value larger than 1.67

Significantly improve product consistency

YMIN’s more professional solution – Quality control

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Small Expert

LED Double 85 testTemperature:85℃±2℃Humidity:85%±10%

YMIN’s more professional solution-- Application test

LED driver test at 100 ℃Temperature:100℃±2℃

Test the product's performance in the practical application

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Small Expert

The standard capacitor test comparison between YMIN and Japanese R company

Test condition:Temperature:130℃， DC Voltage: 47.6V ; Ripple Current: 900mA； Frequency: 120Hz

Test time(Hrs)Test time(Hrs)

Capacitance-Test time curve Dissipation factor(tanδ)-Test time curve

(tanδ%)

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Small Expert

(μF)




(tanδ%)

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(μF)

Small Expert




(tanδ%)

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(μF)

Small Expert

We can：

Ø greatly improve the stability of LED driver at high temperatureØ greatly improve reliability of LED driver and whole lampØ reduce early failure rate of whole lampØ greatly increase the life of whole lamp

Make the electrolytic capacitors not be the weakest point in LED driver

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Small Expert

Specification

Ymin product R Company product

Size ΦD×L

Ripple current

mA.r.m.s./130℃，100KHz

Rated working life (Hrs)

Size ΦD×L

Ripple current

mA.r.m.s./130℃，100KHz

Rated working life (Hrs)

330μF/25V 130℃ Φ10×12.5 650 3000 Φ10×12.5 620 2000

470μF/50V 130℃ Φ12.5×20 1050 5000 Φ12.5×25 1200 4000

220μF/100V 130℃ Φ16×25 1155 5000 Φ16×25 1100 4000

6.8μF/200V 130℃ Φ8×9 117 3000 Φ8×11.5 130 2000

1.8μF/400V 130℃ Φ8×9 68 3000 Φ8×11.5 75 2000

6.8μF/400V 105℃ Φ10×12.5 280 12000 Φ10×16 280 10000

Comparing table of some capacitor values between YMIN company and R company

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Small Expert

Add Your Title

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Small Expert

Item Solutions of Ymin Solutions of R

Design

Product series：special series used for LED driver Product series: general purpose

Specification: 160V - 450V products are designed for high frequency and low ESR requirement,this is used to solve ripple current at high frequency, eg: 4.7uF/400V 8*11 LKF, ESR < 7 at 10 K Hz.

not clear about their solution

Size: YMIN developed size of which height is 7mm, 9mm and 50mmin order to solve the limit of space and height in LED

eg:100uf/16V LK 8K hrs 8*7mm 3.3uf/400V LKF 10K hrs 8*9mm68uf/250V LKG 12k hrs 8*50mm ( designed for T4 , T5)

No special solution in their suggested series.

Material

high formed voltage（7V）in cathode foil to solve the large ripple current through cathode no special solution

Rubber: special IIR（Resin curing temperature）this is used for super long life LED ( 80K to 100K hrs)，

our series is: LKG，LLK，LKLno special solution

Technology

Patent technology: pre-punched hole,in order to increase reliability and stability of LED at super high temperature no special solution

aging technology at 115℃ and multi-voltage（ 105℃ series）in order to increase reliability and stability of LED at super high temperature no special solution

Installation type

We can produce SMD capacitors for the diameter less than 10mm in all series to bulk production requirement no special solution

TestVerification

LED driver: double 85 test for 3000 hrstemperature: 85℃, humidity: 85% not quite clear about

their testLED driver: 3000 hrs' test at normal temperature

test at super high temperature 115℃ 125℃

Much more professional than R company (in LED driver)

Series suggestion for LED driver

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Small Expert

Series FeaturesSpecification Description

ApplicationTemperature and Life Capacitance Voltage Diameter(mm) Life

LK7 Super small size series,the height is only 7mm

105℃4000～ 6000 hrs 2.2μF~220μF 6.3~400V

Φ5 4000 hrsDesigned for

super small LEDΦ6.3 5000 hrs

Φ8 ,Φ10 6000 hrs

LK Small size series,high frequency low ESR30000 hours LED life guarantee at 80℃

105 ℃6000～ 8000 hrs 0.47μF~10000μF 10～ 450V

Φ5,Φ6.3 6000 hrs Designed for

economical LED≥φ8 8000 hrs

LKF Standard series, high frequency low ESR50000 hours LED life guarantee at 80℃

105 ℃7000～ 10000 hrs 0.47μF~4700μF 10～ 500V

Φ5 7000 hrsDesigned for standard LED

Φ6.3 9000 hrs≥Φ8 10000 hrs

LKGLong life series, high frequency low ESR80000 hours LED life guarantee at 80℃ 105 ℃

8000～ 12000 hrs 0.47μF~4700μF10～ 100V

Φ5 8000 hrs

Designed forlong life LED

Φ6.3 10000 hrs≥Φ8 12000 hrs

160～ 500VΦ5,Φ6.3 10000 hrs

≥Φ8 12000 hrs

LKL High temperature series, LED working environment can reach more than 100℃

130℃2000~5000 hrs 0.47μF~4700μF

10～ 100VΦ6.3 2000 hrs

Designed forhigh temperature

LED

Φ8 ,Φ10 3000 hrs≥Φ12.5 5000 hrs

200～ 450VΦ6.3 2000 hrsΦ8 3000 hrs

≥Φ10 5000 hrs

LLK Super long life series,LED working environment can reach 90℃ to 100℃

105℃12000~20000 hrs 1μF~68μF 160～ 450V

6.3×11 ,8×9 ,10×9 12000 hrs

Designed forsuper long life

LED

8×11.5 ,10×12.5 15000 hrs

10×16,10×20,10×23, ≥Φ12.5 20000 hrs

SMD TypeSMD capacitors

Specially designed for LED bulk and automatic production, cover all the life, capacitance and size range of above mentioned radial capacitorsFirst company that develops SMD capacitors for LED

Series suggestion for LED driver

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Small Expert

Series FeaturesSpecification Description

ApplicationTemperature and Life Capacitance Voltage Diameter(mm) Life

LKM Small size large ripple currentHigh frequency low ESR

105℃7000～ 10000 hrs 0.47μF~4700μF 10-500V

Φ5 7000 hrs

Designed for super small LED

Φ6.3 9000 hrs

Φ8 10000 hrs

LKX Small size series,high frequency low ESR7000-12000hours LED life guarantee

105 ℃7000～ 12000 hrs 12μF~1800μF 35～ 450V

Φ6.3 7000 hrs

Designed for economical LED

≥φ8 12000 hrs

LKZ Standard series, high frequency low ESR12000-15000 hours LED life guarantee

105 ℃12000～ 15000 hrs 2.2μF~6800μF 10～ 500V

Φ8 12000 hrs

Designed for standard LED

Φ10 12000 hrs

≥Φ12.5 15000 hrs

LKJ

Specially designed for smart energy meterLong life low ESR miniature product 105 ℃

4000～ 10000 hrs 0.47μF~15000μF

6.3～ 10WVΦ5 4000 hrs

Designed forlong life LED

Φ6.3 6000 hrs≥Φ8 8000 hrs

160～ 500V

Φ5,Φ6.3 6000 hrs

≥Φ8 10000 hrs

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Philosophy

n Happyn Diligentn Honestn Grown Harvest

Culture

Progresslittle by little & day by day

Mission Value

n Creat value for customersn Benefit our

employees n Contribute

to society

n Produce products trusted by customers

nMake the team respected by society

Company Introduction

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Small Expert

n Established time:2001n Address: Shanghain Staff:370 eemployeesn Floor area:40,000㎡n Registered capital： 15million RMBn Enterprise nature:manufacturing enterprisen Main business: produce aluminum electrolytic capacitors for LED,CFL and electronic

ballast

Enterprise certification:2003 "ISO9001"2006 "Shanghai high & new technology enterprise"2007 "Shanghai key & new products certification"2008 "National high & new technology enterprise

certification"2010 "Shanghai brand products certification"2010 "Shanghai AAA credit grade"2011 "National key & new products certification"2012 "ISO14001"2012 "OSAHA18000"

Product certification:RoHSREACHPFOSPAHS 6 invention patents13 utility model patentsReliable test approved by reliability research & analysis center of Chinese Saibao Laboratory(the fifth electronic research institute of industry and information ministry)

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Company IntroductionSmall Expert

Main Customers

LED LED LED LED

LED LED LED LED

LED LED LED LED

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Small Expert

Thank You！Megary GaoShanghai Yongming Electronic Co.,LTD.--------------------------------------------------------------------------------------Add: No.258,Guangcun Road, Nanqiao Town, Fengxian District,Shanghai. P c : 201406China mobile : +86-15021677948India mobile : +91-8860887569E-mail: [email protected]************************************************************The most professional capacitors designed for LED 32 key technology patents in LED capacitor 14 years' experience in super-mini size for long-life lightingDirect replacement of Japanese high-quality capacitors The most advanced technology to solve the weakest point for LED life************************************************************

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aluminum electrolytic capacitors specially designedfor led … · 2015-04-28 · aluminum...

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