Company Filing History:
1 out of 2 
1 out of 1 Years Active: 1992
Title: The Innovations of Donald R Ensor
Introduction
Donald R Ensor is a notable inventor based in Western Springs, New Zealand. He is recognized for his contributions to the field of electrical engineering, particularly in the development of circuits for fluorescent lamps. His innovative approach has led to advancements in lighting technology.
Latest Patents
One of Donald R Ensor's significant patents is the Fluorescent Lamp Controller. This invention describes a circuit that is suitable for the instantaneous starting, continuation, and interruption of current through gas-filled discharge tubes, specifically fluorescent lamps. The circuit ensures that the lamp heaters are energized before instantaneous control can occur. A preferred silicon controlled rectifier (SCR) is utilized alongside a bridge rectifier. The SCR plays a dual role by discharging the capacitor through the pulse transformer, which causes the arc to strike immediately upon application of gate current. It also maintains the lamp current as long as a supply of SCR gate current is provided. Additionally, a TRIAC can be used without a bridge rectifier, offering a convenient arrangement for pulse-starting and maintaining current, as well as providing a dimming function. This technology has applications in 'flashing' advertising signs, general illumination, and signals.
Career Highlights
Throughout his career, Donald R Ensor has worked with various companies, including Electronic & Transformer Engineering Limited and Vusion International Limited. His experience in these organizations has contributed to his expertise in electrical engineering and innovation.
Collaborations
Donald R Ensor has collaborated with notable individuals in his field, including his coworker David P Ball. Their partnership has likely fostered further advancements in technology and innovation.
Conclusion
Donald R Ensor's contributions to the field of electrical engineering, particularly through his patent for the Fluorescent Lamp Controller, highlight his innovative spirit and dedication to advancing lighting technology. His work continues to influence the industry and inspire future inventors.