Can someone explain how these transmit a signal,(What do they use for power to do the transmitting??????)
- posted
20 years ago
RFID
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- posted
20 years ago
I assume you mean *passive* tags?
They are themselves powered by the power emitted by the reader.
They pass information to the reader by presenting a variable RF load.
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |
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| 1962 | "Will you love me when I'm sixty-four?"
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- posted
20 years ago
But don't count on a very long range.... a few feet tops. Brad PC Logic
Schematic entry and PCB design software
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- posted
20 years ago
[snip]
Yep! Most of my recent chip designs have been battery-powered tags with sleep-mode to keep the average power consumption in the mud.
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |
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| 1962 | "Will you love me when I'm sixty-four?"