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Joseph M. Allison
Curriculum Vitae
Engineering and Design Experience
Over 30 years of engineering and design experience in the design, manufacturing and performance of electronic ballast circuits, power conversion circuits, and power supplies. Expertise in working through regulatory approvals: UL, CSA, FCC and CE mark conducted and radiated emissions limits. Obtained over 20 patents.
 | Designed and developed innovative electronic ballast circuits that apply to HID and fluorescent lamps resulting in eight patents (assigned to GE Lighting). |
| Designed and developed, "World Ballast" electronic florescent ballast circuit, which comprises PFC front end, half-bridge resonant soft switching converter and programmed start chip. |
| Developed circuits, which allow for shutting down fluorescent ballast when a lamp fails to transition from glow to arc following six attempts. Patent assigned to Robertson World Wide. |
| Developed circuits that enable a new fluorescent lamp to ignite after automatic shut down (due to lamp failure) without cycling AC power (hot swap capability). Patent assigned to Robertson World Wide, Inc. |
| Contributing designer of the electrical power system for a NASA spacecraft. |
| Designed and developed power supplies for industrial applications. |
| Designed and developed several models of power supply to operate strobe tube flashing light systems for emergency vehicles. Invented a novel two-phase flyback converter. Patent applied for and assigned to Federal Signal Corporation. |
| Developed a micro controller program to control strobe tube power supplies applied to police cars. This was the first time that a single micro controller had been used to control flash patterns simultaneously with the power converter control. Patent assigned to Federal Signal Corporation. |
| Developed a micro controller program to sense and take action to correct a strobe tube that gets stuck in glow mode. Patent assigned to Federal Signal Corporation. Worked through regulatory approvals: SAE conducted and radiated emissions, Canadian police receiver interference limits. |
| Designed power supplies for automatic battery charging on rapid transit vehicles. Obtained patents, assigned to McGraw Edison Corporation, for circuit innovations. |
| Designed computer controlled power supply for Mark 48 advanced capability torpedo; 5kW output to the sonar transmitter; 1kW to the warhead; +/-15V and 12V outputs. |
Technical Expertise
 | Electronic ballast design: HID and fluorescent lamps. |
| Design of strobe tube power supplies. |
| Design of power factor correction stages, active and passive. |
| Switch mode power supply design: buck, boost, flyback, forward, bridge, etc. |
| Soft switching power converter design: zero voltage and zero current switches. |
| SCR power supply design: single phase and three-phase. |
| Battery charger design. |
| Computer modeling: ICAPS, a modernized version of SPICE. |
| Loop stability analysis: using ICAPS to generate gain and phase plots. |
| Transformer and inductor design. |
| Embedded design using micro controllers. |
| Assembly, C, and Basic programming languages. |
| Analog and digital circuit design. |
| Work toward regulatory approvals: UL, CSA, FCC, CE, etc. |
Technical Consulting
Covina, CA, July 2001: Eight-week consulting, power supply design for military helicopter. Boeing Aircraft was prime contractor. Conducted design review; suggested several circuit design improvements, generated gain and phase plots and conducted stability analysis. Wrote report that was accepted favorably by Boeing Aircraft design review team
Boston, Mass, 2001: Designed and presented a three-day seminar on fluorescent and HID electronic ballast design at a power conversion conference
Educational
BSEE - Gannon University Erie, PA.
MSEE - Gannon University Erie, PA.
PE - Registered Professional Engineer
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