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Pushing the limits of performance: GaN enables high-frequency motor drives

Complex new technology applications such as humanoid robots place stringent demands on motor drives: the drives must provide precise control capabilities to ensure that speed, torque and efficiency remain constant. In recent years, these motor systems have developed rapidly, which is inseparable from technological advances and material innovations in the electronic power industry - many applications are transitioning from traditional silicon-based devices to advanced gallium nitride (GaN) solutions. GaN tec....
2025-07-29 11:27:18 757
Pushing the limits of performance: GaN enables high-frequency motor drives

What causes overshoot when using a MOSFET to control the shutdown of a resistor voltage divider?

In electronic circuit design, MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are widely used in power control and signal switching circuits due to their advantages such as low on-resistance and high switching speed. When MOSFETs are used to control the shutdown of resistor voltage divider circuits, voltage overshoot phenomena may occasionally occur. This not only risks damaging other components in the circuit but also affects the stability and reliability of the entire circuit system. Understa....
2025-07-24 10:25:31 726
What causes overshoot when using a MOSFET to control the shutdown of a resistor voltage divider?

How to Suppress SiC MOSFET Spikes Using a Buffering Circuit

In recent years, the application scope of SiC MOSFETs as switching elements in various power supply applications and power lines has been expanding rapidly. One of the main reasons for this is that, compared to previous power semiconductors, SiC MOSFETs enable high-speed switching operations. However, due to the rapid changes in voltage and current during switching, the effects of the device's own package inductance and the parasitic inductance of the surrounding circuitry become significant, leading to lar....
2025-07-14 15:36:13 982
How to Suppress SiC MOSFET Spikes Using a Buffering Circuit

Application of DC brushed motors in automobiles

Introduction to Brush-Type DC Motors Brush-type DC motors, commonly referred to as brush motors, are a type of DC motor widely used in household appliances. Their key components include fixed main poles and brushes on the stator, as well as armature windings and commutators on the rotor. Electric power from the DC power source enters the armature windings through the brushes and commutator, generating armature current. The magnetic field produced by the armature current interacts with the main magnetic fiel....
2025-07-09 11:21:23 464
Application of DC brushed motors in automobiles

How can the MCU continue to complete the corresponding operation when the power is slow to power on?

In electronic systems, the microcontroller (MCU) is the core control unit, and its stable operation depends on a reliable power supply. However, in actual applications, the power supply may be slow to power on, which poses a challenge to the normal startup and subsequent operation of the MCU. To ensure the stability and reliability of the system, the MCU needs to adopt a series of strategies to deal with the problem of slow power on and continue to complete the corresponding operation. Countermeasures at ....
2025-07-04 10:40:15 835
How can the MCU continue to complete the corresponding operation when the power is slow to power on?

Reversed power supply polarity causing board damage? Here are some solutions.

Many hardware engineer projects are completed on perforated boards, but there is a risk of accidentally reversing the power supply polarity, which can cause electronic components to burn out and even render the entire board unusable, requiring the board to be rewired. Are there any good solutions to this problem?Firstly, carelessness is inevitable. Although distinguishing between the positive and negative terminals is as simple as identifying the red and black wires, we might not make a mistake when connect....
2025-07-01 11:37:49 1189
Reversed power supply polarity causing board damage? Here are some solutions.

PN Junction Diodes as Electronic Switches: Charge Storage Effect & Reverse Recovery Time Impact

PN junction diodes are often used to make electrical switches. In the forward-biased state, i.e., the on state, a small applied voltage can produce a large current; in the reverse-biased state, i.e., the off state, only a small current exists within the PN junction. The switch circuit parameter we are interested in is the switching speed of the circuit. The following content will qualitatively discuss the switching transient of the diode and the charge storage effect. Without any mathematical derivation, we....
2025-06-26 11:01:29 513
PN Junction Diodes as Electronic Switches: Charge Storage Effect & Reverse Recovery Time Impact

Using the 4200A-SCS Parameter Analyzer to Study the Electrical Properties of Photovoltaic Materials and Solar Cells

As the demand for clean energy grows, the potential of solar energy is increasingly gaining attention. Solar cells convert sunlight directly into electricity by absorbing photons and releasing electrons. Electrical testing is widely used in research and development and production to characterize their performance, including DC/pulse voltage measurements, AC voltage testing, etc., analyzing key parameters such as output current, conversion efficiency, and maximum power output, often under different light int....
2025-06-23 16:34:02 1246
Using the 4200A-SCS Parameter Analyzer to Study the Electrical Properties of Photovoltaic Materials and Solar Cells

IGBT vs MOSFET: Key Differences, Operating Principles, and Applications in Power Electronics

MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) and IGBTs (Insulated Gate Bipolar Transistors) are two important power switching devices in the field of power electronics. They exhibit significant differences in terms of structure, operating principles, performance characteristics, and application scenarios. The following is a detailed comparison of MOSFETs and IGBTs. IGBTs (Insulated Gate Bipolar Transistors) and MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are two common types....
2025-06-18 11:20:28 1066
IGBT vs MOSFET: Key Differences, Operating Principles, and Applications in Power Electronics

How to Accurately Measure Power Supply Ripple Noise: Probe Selection, Grounding, and Bandwidth Tips

A user was testing the ripple of a 5V signal output from a switching power supply using an oscilloscope with a 500MHz bandwidth. They found that the peak-to-peak value of the ripple and noise reached over 900mV (as shown in the figure below), while the switching power supply's specified peak-to-peak ripple value was
2025-06-13 10:44:48 493
How to Accurately Measure Power Supply Ripple Noise: Probe Selection, Grounding, and Bandwidth Tips

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