.. in the box so that the core of T 1 can be tuned. Although the SW60 is based on NPN transistors, it is a positive ground design, so the screen of the coaxial cable is connected to the input of Reg 1 and the purple wire is ground. Another ...
.. protection components. The circuit in Figure 1 illustrates a solution that resolves all of these issues. Figure 1. This design idea is primarily intended to depict a novel switch architecture that can cater to extended battery range ...
.. circuit enables you to generate remote control PWM test signals with a (very) generic (and cheap) chip. A recent Design Idea ( Ref. 1 ) illustrated the application of an interesting chip (the LTC6992 ) to remote control (RC) PWM ...
.. resistance by one step. The power supply and ground pins of the various ICs are not shown in this schematic. This simple design uses only two ICs to adjust the digital potentiometer, shown here as an example 128‑step 10K ohm ...
.. frequency to a precision current source that also accommodates grounded inputs. I recently had the opportunity to share a design ( Ref. 1 ) for frequency to current loop conversion using the versatile (if somewhat ancient) LM29x7 series. ...
.. at some point, differences in ground potential and excessive bus capacitance begin to erode noise and timing margins. This Design Idea shows how to provide fast, glitch-free optical isolation of I 2 C or SMBus signals by using a method ...
.. speed, without any applied drive. Knowing the relationship between the back emf voltage and the shaft speed, you can design a circuit to maintain any constant motor speed by monitoring the back emf voltage. But, few motors use a ...
.. designs rely on highly integrated ICs that conceal their internal operation. The type of Li-ion charger outlined in this design is, somewhat surprisingly, not readily found in a general review of available internet and YouTube resources. ...
.. to 0-20 mA and deliver it to a grounded load with no additional power supply needed. Recently, EDN kindly published a design of mine for a micropower 4-20 to 0-20 mA current loop converter ( Ref. 1 ). Shortly thereafter, in the grand ...