Test and investigation of a phase angle control motor speed controller from China.
There are two components on this PCB that cost me MORE to buy individually than the entire cost of this assembled unit including shipping!
It’s a very standard phase angle control module for varying the duty of mains powered devices like lamps, transformers or some motors (mainly universal motors).
The circuit does have basic suppression, but lacks the important choke that prevents strong radio interference, especially on older AM radios.
Other than that it’s a nicely built module using a textbook design and a beefy triac on a chunky heatsink. They claim it’s rated for up to 2kW, but I’d be wary of using it on anything near 1kW continuously.
Note that the triac used has an isolated tab but that’s not always guaranteed, so the heatsink should be regarded as being at mains voltage, as should the whole PCB. If the module is mounted on a metal panel (using the potentiometer nut) then the panel should be grounded/earthed for safety.
LED Panel PWB Supplier In China Mainland
Leadsintec Co.,Ltd is an electronic manufacturing service(EMS) provider situated in Shenzhen since the year 2004. As an ISO 9001 authorized electronics contract company, we provide a range of electronic circuit board, component sourcing, electronic circuit board assembly, box-build, testing services.
Because of the previous 11+ years ample expertise in fabrication, Leadsintec has gathered a solid reputable name in China and overseas. Our goods are mainly utilized for the Consumer Electronics , Industrial, Automation, Automotive, Agriculture, Defense, Aerospace, Health-related as well as Security market segments.
Our wish is to support small and mid-sized shoppers in minimizing their expense by presenting overall , high-mixed, low and medium volume services. With our experienced system administrators, procedure experts, production employees and sourcing pros, we are in the position to fully understand and go over your wants.
Leadsintec’s fabricating facilities consist of neat work spaces and superior high-speed SMT lines. Our chip placement accuracy can realize +0.1MM on integrated circuit parts. It means we can easily deal with nearly all types of integrated circuits, which include SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA. At the same time, we can easily provide 0201 chip placement, through-hole component insertion and ended product fabrication, test and packaging.
Make Contact With Us
Shenzhen Leadsintec Technology Co., Ltd
E-mail: [email protected]
4/F Xingyuan Technology Park, Gushu Tongda Road Xixiang
Town Baoan District, Shenzhen, Guangdong, China. 518102
A-TECH CIRCUITS CO.,LIMITED
Who’s A-TECH CIRCUITS CO.,LIMITED
In line with : http://atechcircuit.com/about-us
A-TECH CIRCUITS CO.,LIMITED is a agreement PCB fabricating firm based in Shenzhen China, which concentrate on fast turn PCB prototype, small to medium volume PCB fabricating and assembly services. It was created in the year 2003, with more than 550 very skilled full-time laborers, we’re in a position to realize production 15,000 square metre(s) monthly, incorporating above 3000 sorts of rapid PCB prototype. The PCB (printed circuit board) we produced are extensively implemented for various electronic industries, which include computer peripheral devices, aerospace, telecom, vehicles, medical-related equipment, digital cameras, optoelectronic systems etcetera. At least 80% of our PCB goods are sold to The European Union, The USA and Parts of asia.
A-Tech Circuits always sticks to the concept of “quality first, on time delivery and buyer pleasure”. As we focus on quality, pricing, punctual delivery and repetitive progress, we can easily fulfill special needs from worldwide high technology establishments. Further, We have been authorized : ISO9001:2008, ISO14001, TS16949 and UL (UL No: E357001) and additionally complied with the RoHs & WEEE requirement for lead free PCB products through SGS test.
We comprehend that there is always a lot of competition in the PCB industry, nonetheless we’re positive that our commitment of quality, service and fast turnaround times put us before the curve. Not only will we demonstrate to you that we’re deserving of your business and faith, but also we are going to show you the reason our shoppers usually go back.
So as to fulfill different consumer needs world wide, A-TECH will provide an vast selection of PCB fabrication and service, this is a list of the products and services we presently feature:
Rigid FR4 PCB
Metal Core / LED PCB
Micro-wave / RF PCB
Make Contact With Us
A-Tech Circuits Co., Limited
Address: JiaYu Building, ShaJiang Rd, SongGang Town, Bao’an District, ShenZhen , China.
Telephone: 86 (0) 755 3326 0657
Telefax: 86 (0) 755 2306 4829
Mailbox: [email protected]
Ourpcb Tech Limited
Backed up by : http://ourpcb.com/about-us
OurPCB is a global PCB mfg & assembling producer which supplies Offshore service and support by making use of our expertise.
We offer highly competitive pricing, specialized service and support and fantastic delivery period of time. We do that due to the fact we’re the manufacturing company. OurPCB Tech, Our parent corporation in China mainland was set up in 2005, and has supplied certified PCB mfg and Assemblage solutions for upwards of 2,500 shoppers on the planet. As a way to gratify our clients’different needs and preferences for PCB assembling, We built our individual PCB assembling plant in Apr 2011.
Our manufacturing facility has leading-edge machinery, however, not just three high speed SMT lines, Siemens HS50 Pick and placers, Siemens F5 pick and placers, Heller 1809 Reflows, Speedline MPM printers, OK intelligent solder irons, And Otek Automatic Optical Inspection units to name a few. We back up QFP, DIP, QFN, LGA and BGA SIP assembly types.., The minimum SMT footprint we are able to mount is 0201. Our facility can also present programming, Wiring as well as injecting and conformal coating services.
Our Assemblage plant has ISO9001 Certificates, For unfilled PCB manufacture, in addition we have ISO and UL certifications., Hence OurPCB is very able of coping with / Producing top quality assembling projects which fulfill current high quality requirements.
Reach out to Us
OurPCB Australia PTY LTD
Electronic mail: sales[at]ourpcb.com.au
Location: Suite 3A, 85 Bardia Avenue,Seaford VIC 3198
Ourpcb Tech Limited
Electronic mail: sales[at]ourpcb.com
Telephone : 86-311-85981900 86-311-85981877
Location: 3F,Nanhai Plaza,NO.505 Xinhua Rd Xinhua Region, Shijiazhuang Hebei China
OurPCB Production line
Location: #1,Xinke industrial Garden, Yunkai Rd, Luquan economic&industry development district, Shijiazhuang Hebei China
HTD Group Introduction
Mantra: Your PCB production business partner in China
With more than 15 years of experience, HTD Group is immediately becoming the plausible choice for PCB suppliers in China. We’re very proud to manufacture prime quality boards, and feature an excellent and effective workspace for our above 1000 personnel.
For more than 15 years, HTD Circuits has been focused upon matching the needs of our purchasers by offering the best quality tools and resources to make doing business simple and easy.
-Peter Cai, CEO
You’ll find so many problems in doing business on foreign soil. Not only do companies have to be concerned with time zone differences and language challenges, but more importantly, that PCB’s are made using name brand materials and are completed on-time and on-budget! And for those infrequent instances an order arrives with a problem, the confidence and trust that the producer eliminates the challenge rather quickly .
To avoid all these obstacles and to put us atop our contenders situated in China:
>> Multi-lingual employees in China that communicate in several different foreign languages
>> 100Per-cent defect-free assured
>> 99% on-time shipping and delivery
>> Price protection stated
>> Web-based ordering and ERP system 24 /7
>> Global shipping and supply management software programs
We should have the accomplishment , it has taken 15 years of time and effort and the ability to succeed in an ever-evolving, substantial industry.
HTD Group Circuits is on the list of world’s largest and devoted multilayer PCB providers. Our desire for technology and other semiconductors has made it easier for us to become one of the greatest PCB manufacturers in the commercial. Aside from this, it has asked us to expand past the bounds of our country and reach out to the entire world.
PCBs from HTD Group Circuits are the results of the most advanced technological innovations in the field of electronic circuit design technology. These consist of a series of different parts put together like a waterfall which you can use to accomplish a few different functions all concurrently by making a complete circuit. We attempt to cover all the parts which have been put together, in order that it is basic to make proper use of it, no matter whether you are an authority or an newcomer.
As we all know, China has a outstanding market for electronics, steel engineering suppliers and manufacturers but their manufacturing skills are reputable additionally. HTD Circuits as PCB manufacturers runs a pretty big PCB manufacturing area that provides a myriad of PCBs you can think of! PCBs can be printed based on your individual requirements, starting from one or two layers to those mounting to as many as 16 layers.
HTD Group Circuits is dedicated to give you the excellent quality service. This is exactly why all of the PCB fabrication operations is undertaken under the strictest QC and from the highest quality supplies, under expert administration. We even supply you with good quality aluminium PCBs, copper boards, laser cut stencils, flex PCBs and a range of other kinds of tailor made PCB that fit your need and affordability.
Get Hold of Us
Building No. D3, The third Industrial Zone, Fuqiao, Fuyong Street, Baoan Dist, Shenzhen , Guangdong China
E-mail: [email protected]
TEL: +0086-755-8146 2930
Fax : +0086-755-8146 2931
In accordance with : http://htdcircuits.com/about-htd/