John Pleitz Email & Phone Number

Electronics design consultant specializing in analog/power electronics. Latest assignment: Served as an offsite design consultant/advisor for the clients (IED LLC - Louisville, KY) audio power amplification product. In this role my initial focus was on resolving conceptual/design issues on the “F6 Multichannel Power Amplifier” – which is a class D.

Rossford

Served as an Technical service resource for Industrial controls, Instrumentation, Programmable Logic Controllers, Power Supplies and Variable Frequency Motor Drives.

Toledo, Ohio Area

This project was for the design of a minaturized low profile -10 KV 50 uA switchmode power supply. Comprised of all SMD componentry, including the low profile high voltage transformer, this unit accepts a 18 - 36 VAC input and produces a regulated negative 10 KV DC @ 50 uA output. The design is based on single ended forward converter with an 8 stage high.

Phoenix, Arizona Area

• Designed the BT series of mobile amplification products, consisting of six models which garnered numerous product review wins. These design's utilized the seminal circuit breakthroughs as taught in US Patents.
• Continued to direct a staff (5) of engineers, technicians & draftsmen with an emphasis on technical leadership.
• Supported the technical portion of production engineering thru the ongoing evaluation of second source electronic components Ferrites, Power Mosfets, Hi Ripple Current Capacitors etc.

Phoenix, Arizona Area

• Led the companies electronic product design activity in the Phoenix AZ 100,000 sq ft manufacturing facility.
• Directed the circuit design, magnetics design, thermal design, mechanical design, development plan creation & review
• Responsible for staffing / mentoring junior engineers and further developing Mitek's Electronics Engineering department, including organizing the technical library, conducting design review & UL & CE compliance testing.
• Oversaw related Drafting, Schematic Capture and PCB layout/creation activities. creating design processes and controls.
• Designed the original PS15 Powered Subwoofer Class D circuitry for use in the MTX brand of Amplified Subwoofer product for home. This product and the resultant circuitry represented Mitek Corps 1st successful Class D.
• Responsible for staffing and mentoring junior engineers.

Phoenix, Arizona Area

• Designed the Thunder series of mobile amplification products, consisting of six models which garnered numerous product review wins. These design's utilized the seminal circuit breakthroughs as taught in US Patents.

Phoenix, AZ

Joined Mitek Corporation as a design consultant for a new series of Automotive Amplifier products, eventually this led to a full time position as a senior design engineer - approximately six months into the project accepted the promotion to Director of Electronics Engineering. As this division (Phoenix) of the company was in start up mode many of the.

Tempe, Arizona

• Served as the senior / principal design engineer (electronics / magnetics / pcb / thermal) on the companies flagship line of mobile amplifiication products (8 models) from 1988 - 1993 ie "The Punch Amplifiers" models.
• Designed the driver / output circuitry for the Surface Mount Technology SIP Ceramic "Hybrid Modules" utilized in the HD series of Automotive Amplifiers. Utilizing all SMD components, (17 Transistors, 10 Diodes & 20 Ink.
• Authored the requisite electrical specifications / datasheets (Input Offset Voltage, Input Noise, Phase Margin etc) for the above Hybrid Modules which allowed multiple supplier's to test each module to the same.

Tempe, AZ

• Implemented production driven design upgrades to the companies flagship line of products which dramatically increased the manufacturing yield and field reliability of the Rockford Punch Amplifier product line.
• Redesigned & upgraded various older models including the newly acquired Hafler Corporation mobile amplifier line.
• Directed several Engineering Aides production engineering and research related activities.

Toledo, Ohio Area

• Redesigned the "Starlet" Amplifier module (100 Watt 4 Ohms) which consisted of replacing the original RCA HC2000 aerospace grade (hermetically sealed metal power package) linear power op amp IC (+/- 37 VCC 7 Ampere.
• Designed the circuitry for 2 processing cards used in a rackmount modular theatre sound processor. The first card was a 10 to 100 mS time delay for the surround channel of the processor utilizing bucket brigade.
• Designed and developed additional linear amplifier product including an Bi-polar 150 Watts/Ch into 4 Ohms from 20-20KHz with less than.1 THD - and a complementary MOSFET (Hitachi Lateral) design (non production.

Toledo, Ohio Area

• Aided production efforts/setup and aligned the companies optical film sound processor and film handing equipment.