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When reaching for a power supply design it’s normal here in 2022 to reach for a switching design. They’re lightweight, very efficient, and often available off-the-shelf at reasonable pr… ...
Copied four-fold, this circuit joins the rows and columns of the 74HC595 to the keypad matrix. To scan across the four columns, the microcontroller performs an SPI transfer of the key value: 0x01.
MINNEAPOLIS, MN--(Marketwired - Sep 19, 2013) - Network Instruments ®, a developer of innovative network and application performance management solutions, today announced the Network Instruments ...
Figure 1 shows a simple current sensing circuit that operates over a wide supply range. The circuit uses a micropower LT1494 op amp for its rail-to-rail input and output and ultralow supply current.
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