Canary bitcells act as online monitors in a feedback architecture to sense the proximity to the Data Retention Voltage (DRV) for core SRAM bitcells during standby voltage scaling. This approach implements aggressive standby VDD scaling by tracking PVT variations and gives the flexibility to tradeoff between the safety of data and decreased leakage power. A 90nm 128Kb SRAM test chip confirms tha...

Among the diierent r/n redundancies, it is necessary to distinguish between the (classic) case of active redundancies (hot standby) and the case of passive redundancies (cold standby) presenting failures at calling instant. This paper deals with passive redundancy including such solicitation failures: redundancy elements only operate in case of the failure of initial elements and have a non neg...

A power management controller circuit with a switched-capacitor mode down-regulator and a battery charger block for semi-active radio-frequency identification (RFID) tags was proposed and fabricated. The major achievement of the proposed switched-capacitor mode downregulator and battery charger block is providing a low standby current internal voltage supply circuit and self-controlled thin fil...

Mingoo Seok, Scott Hanson, Yu-Shiang Lin, Zhiyoong Foo, Daeyeon Kim, Yoonmyung Lee, Dennis Sylvester, David Blaauw University of Michigan Ann Arbor [email protected] ABSTRACT An integrated platform for sensor applications, called the Phoenix Processor, is implemented in a 0.18μm CMOS process with an area of 915x915μm, making on-die battery integration feasible. The Phoenix Processor uses a compr...

A successive approximation ADC targeted for use in distributed sensor networks is presented. The individual nodes in these sensor networks are very energy constrained. Typical use of the individual nodes will include long periods of idle time in a low power standby mode followed by a period of activity that may include sampling of the sensors, computation, and communication. The ADC reported he...

Auxiliary power supplies are required to have low standby power consumption at light-load conditions. These power supplies also require features such as low cost, high efficiency, and a Line Under-Voltage Lockout (UVLO) function to detect the input voltage so the main power supply does not operate at low input voltage ranges. Fairchild’s FSQ510 has been specifically designed for low standby pow...

This investigation deals with transient analysis of cold standby system with n units . Chapman-Kolmogorov equations are developed for repair facility with two repairmen and solved by using matrix technique. Availability and reliability factors have been obtained with probability of the system. A particular case has also been discussed.