Brochure: "Preliminary LTC1149, LTC1149-3.3, LTC 1149-5; High Efficiency Synchronous Stepdown Switching Regulator," Linear Technology Corporation, Milpitas, California, pp. 1-16, Nov. 1992. |
Brochure: "LM494 Pulse Width Modulated Control Circuit," National Semiconductor Corporation, Santa Clara, California, pp. 17-23 (undated). |
Brochure: "Maxim High-Efficiency, +5V Adustable Step-down Switching Regulator," Maxim Integrated Products, Sunnyvale, California, pp. 1-8, Copyrighted 1991. |
Schematic: Power supply circuited used in a process control transmitter which is believed to have been on sale more than one year prior to the filing of the present application. |
Schematic: Power supply circuited used in a process control transmitter which is believed to have been on sale more than one year prior to the filing of the present application. |