Tpms Sensor Batteryless

A 13 56 mhz hf power recovery circuit was designed for batteryless tire pressure monitoring system tpms or wireless sensor networking applications using chartered 0 35 mum cmos technologies.

Tpms sensor batteryless.

Sensor positions are determined automatically. The battery based sensors are typically 35 70g each plus the need for a counterweight. Smallest size available only 18mm diameter x 14mm. Tire pressure monitoring sensors are usually powered by a 3 volt lithium ion battery.

Sensor life time. Lightest tpms sensor available only 15g which means it can be used as a partial counterweight to the valve. Stack s unique batteryless tyre pressure and temperature monitoring system tpms has eliminated the electronics and batteries from the sensors providing new limits of performance for tpms and significantly increasing sensor life to 5 seasons or more. Sensors contain batteries typical life time 3 5 years after which the whole sensor must be replaced.

No programming nor activation required. The battery is encased in the sensor s molded plastic housing. Stack tmps is wireless and batteryless. I want to design a tpms and i ve heard that the market is getting into batteryless solutions meaning the s tx sensors and transmitter and the entire circuit inside the tires won t need batteries at all as it is complicated to replace.

The solution is done by an energy harvester. Batteryless with projected life of 20 years thanks to our patent pending rfid technology.