A current sensing switch having a pair of magnetically operated contacts located in a cavity of a block of non-conductive material and a magnetic field concentrating member adapted to partially surround a current carrying conductor such that the magnetic flux produced therein is confined to a ...
Wanting to see if the circuit might act badly while sensing a non-zero current, Neubean tries the LTC6255 with a step changing load current and uses three different RGATE values. ISENSE transitions from a base of 60 mA to a higher value of 220 mA enabled by a momentary switch that ...
Current sensing and measuring are one the most complex task you may have to deal with in the motor control applications since it involve both hardware and software resources. Understanding the hardware that sense the currents and then being able to measure accurately the current values require you...
Figure 3. Electronic control unit with low-side solenoid and high-side switching and sensing. In this case, however, the voltage reversal across the solenoid when the switch is opened will cause a much wider swing of common-mode voltage, from battery high-side voltage to one diode drop below...
circuitry (does not power the drivers) Supply voltage for internal gate drive Power ground (note: pin 5 is intended to be used as a Kelvin pickup of the PGND for IMON sensing) Low side MOSFET gate signal for observation purposes - do not connect externally Switch node of the power stage...
are (well) outside the realm of utilizing linear Hall ICs for current sensing. Protecting High-Power Electronics A classic example of current-sensing detection and protection for high-power IGBTs is shown in figure 22. This diagram can relat...
2 is a diagram which describes a current sensing structure in accordance with embodiments. As illustrated in example FIG. 2, M2 indicates a main power switch and M1 indicates a sensing transistor (TR). The sensing TR can include a field effect transistor (FET). A main current Im (i.e.,...
This requires some form of temperature sensing and a method to correlate the sensed temperature to the actual winding temperature. Since it is impractical to place a temperature sensor inside the inductor to sense the winding temperature, a practical alternative is to sense the high-side FET ...
CURRENT SENSING BI-DIRECTIONAL SWITCH AND PLASMA
Each LTC6101 performs high side sensing that rapidly responds to fault conditions, including load shorts and MOSFET failures. Hardware local to the switch module (not shown in the diagram) can provide the protection logic and furnish a status flag to the control system. The two LTC6101 outputs...