Bich Pham is an applications engineer with Maxim Integrated Data Products Inc., Sunnyvale, Calif. He has a BSEE from San Jose State University, Calif. Email address: Bich_Pham@maximhq.com
2 results found for Bich Pham, displaying items 1 - 2
March 2, 2006[Ideas For Design] FET-OR Circuit Switches Between Main And Backup Supplies
The circuit of Figure 1 provides a "diode-OR" function for applications that must switch automatically between the main and backup supply voltages. Such applications include battery-backed memory supplies and any battery-operated device with a wall-adapter connection. For example, a battery-backed SRAM circuit (nonvolatile memory module) requires at least two power sources: a high-current active path for the SRAM memory...
October 13, 2005[Ideas For Design] One-Wire Serial Bus Carries Isolated Power And Data
Medical and industrial applications often require galvanic isolation of 2500 V ac or higher for the safety of patients and equipment operators. The isolation barrier conveys not only power to the sensing element, but also data to or from that element. Each data signal crossing the barrier-requires isolation. Consequently, designers can typically save costs in these applications by choosing a serial bus rather than a parallel bus. Serial buses include SPI, I2C, and the...
