Design Engineer Electrical

Junsheng John Yang

Address: **** ******** *** ***, **** Valley, CA 93063 Email: **********@*****.*** Cell: 805-***-****

Competencies: 15-year+ hardware design experience on military servo control boards, power board, communication boards, and RF boards. Layout high speed PCB up to 8 GHz., Good knowledge on Mil-Aero and industrial standards such as DO-160, 254, 461. MIL-750, UL508, UL746.

Work Experience:

Staff Electrical Design Engineer of Ratpac Controls Inc. Van Nuys, CA Apr.2019 – present

Design High Current (120A) AC power Systems having TriAC, Zero cross detection, Ghost Load

Design and layout Power Control boards and communication boards meeting UL508 and UL746 with KiCAD or Eagle

Design AC-DC converter, Battery backup system, Wireless, DMX,CRMX, Wifi, Bluetooth, ArtNet, sACN

Provide guideline (chips selection) to engineer team and review junior engineers’ work

Senior Electrical Design Engineer of ITW/Opto Diode Inc, Camarillo, CA Jul. 2015 – Apr. 2019

Low noise Pico Amp amplifier circuit design and layout (Altium).

254~1070nm pure LED and PbS / PbSe Detector Project/Traveler management

Wafer, Die and assembled product Test.

Automatic test equipment/tool design and LabVIEW program development

Electrical Design Engineer of Troll Systems, Valencia, CA Nov 2010 – Jul 2015

Hardware and firmware design for Blushless DC motor servo control (PWM drive) and communication circuits

C8051 Processor, LMD18200T controller, Encoder, communication chips are used in my designs

Familiar with RS-232/422/485, CAN, USB, SPI, Ethernet, DVI, PCI Express, SDI, HD, HDMI, SerDes interface

Power board design (Surge Protection, Boost, Buck, Inverting Converters, Battery charger/ backup, soft start)

High density PCB layout (Altium) including High Speed circuit up to 8 GHz;

RF board design ( LNB, splitter, Antenna), simulation (Microwave office), layout, and test.

Use AutoCAD to create Fabricate/Assembly/Masking Drawings

DVT(use oscillator, Network Analyzer, Spectrum analyzer), ATE, Trouble-shooting, Failure Analysis.

Electrical Design Engineer of Woodward HRT, Santa Clarita, CA May 2008-Nov. 2010

Design military products: Power, Missile Actuator Control /Motor servo circuits

Mixed Signal Design with DSP, ADC, DAC, Filters, Data Processing

TMS320 series DSP, Allegro A3930 series motor controller and used in my design

VHDL / Schematics for Actel A3P series FPGA Design (Libero)

Pspice / LT / TI / ModelSim simulation

Prototype development, test plan and documentation (CMMI / ITAR)

Design Verification Test, Failure Analysis, and Acceptance Test Procedure.

System Engineer of Ronan Engineering, Woodland Hills, CA Sep. 2007-May 2008

Project design management

Lead system installation

System test, trouble shooting, test procedure, and documentation

Electrical Design Engineer of Tetracam Inc, Chatsworth, CA Oct. 2005 - Sep. 2007

Use OmniVision and Kodak image sensors to Design Digital Camera or Video Cam

Schematics Design (OrCAD) and PCB Board Layout (Portal)

PIC16F77x chips and SoundVision Clarity 4 series ASICs are used in my designs

Develop C and Assembly code for cameras or image processing

Use Nucleus, ARM_ICE, or PIC-ICE for debugging (RTOS)

Design Verification Test, Failure Analysis, and Acceptance Test Procedure

Education:

MS Degree in Electrical Engineering, CSU Northridge (GPA: 3.8 / 4.0)

BS Degree in Computer Science, Zhongshan University

BS Degree in Applied Computer, Nanjing University

Certificates / Special training:

Microsoft Certified System Engineer Certificate (MCSE)

California Engineer-in-training (EIT) Certificate (No: 124602)

TQM, GMP, SOP, ISO9000, ISO14000, AS9100

Computer skill:

Assembly, C, VHDL, OrCAD, PowerPCB, Altium DXP, Eagle, KiCAD, Matlab, Simulink, MPLab, Xilinx MSE, HTML, XML AutoCAD; Microwave Office, Nucleus, Code Composer Studio, Libero, Saturn PCB Design

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