In many battery-powered applications, such as metering, wearables, building security and the Internet of Things (IoT), the current drawn from the battery in a standby condition with light or no load defines the total run time of the system. In integrated switch converters, the IQ is only one portion of this battery current.
For three-phase inverters, the differential signal from the phase current shunts can now be directly connected to the INA240 differential inputs and a highly accurate output with minimal common-mode transient artifacts is available. Figure 2 shows the in-line phase current shunt topology as realized with the TIDA-00913.
For low-voltage drives with DC-link voltages in the range of 24 to 60 V, the current shunt is typically placed either inline to the phase or between the bottom switch and GND, as shown in Figure 1. Figure 1. Typical Current Shunt Placement in Three-Phase Inverters
Therefore it is important to validate the common mode transient voltage in order to characterize the INA240. Unlike Si-FET, the LMG5200 has a much better switching performance and common mode voltage transients are in the range of 25 to 50 V/ns.
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This article will describe the difference between a boost converter’s quiescent current and shutdown current to provide a deeper understanding of how …
Minimizing power consumption is an important design consideration. One way to do this is by selecting devices that minimize their ground or quiescent current (IQ), such as a …
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An ultra-low shutdown current specification of 6 μA at 48-V input (see Figure 4) enables extended battery life when in idle mode, and its low operating quiescent current …
Description The TIDA-00913 reference design realizes a 48-V/10-A three-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of …
Introduction A device’s quiescent current, or IQ, is an important yet often misused parameter for low-power, energy-efficient designs. In many battery-powered applications, such …
In battery-operated environments, it’s important to pay attention to quiescent current when designing your power system block diagram. Some applications, such as …
One very important and often overlooked specification on ICs is the Quiescent Current or IQ parameter. Quiescent Current can be defined as the amount of current used by …
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This article will describe the difference between a boost converter’s quiescent current and shutdown current to provide a deeper understanding of how quiescent current and shutdown …
Explore quiescent current (IQ) in power converters: definition, measurement, and usage. Learn about low-power design and battery run time.
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