SG190

Inrush Current Limiters (ICL) are an important class of devices designed to protect sensitive electronic components from inrush current. The SG190 is a low cost two-stage ICL that features an adjustable current limit and fast response time. It is well suited for protection of switching power supplies, motor relays, and other electronic components.

Past Solutions

In the past, there were several ways to protect electronic components from inrush current. For example, a linear voltage regulator could be used to limit the current, but this approach was inefficient and limited the maximum available current. Another approach was to use a resistor-capacitor (RC) circuit, but this was also inefficient and limited the response time. The SG190 offers an alternative solution.

SG190 Application Field and Working Principle

The SG190 is designed to be used in applications where fast response time and adjustable current limit are required. It is well suited for protecting both AC and DC powered devices from inrush current. The SG190 uses two stages of circuitry to limit the inrush current. The first stage is a resistor which limits the current to a preset value. This stage is followed by an active circuit which further limits the current by turning off the power source when the current exceeds a preset limit. The SG190 has an adjustable current limit, allowing the user to tailor the current limit to their specific application.

Advantages of the SG190

The SG190 offers several advantages over other approaches to inrush current protection. The first is its fast response time, which helps protect the load from damage from large spikes in current. The second advantage is its adjustable current limit, which allows the user to tailor the current limit to their specific application. Finally, the SG190 is a low cost solution, making it an attractive option for budget-conscious applications.

Conclusion

In summary, the SG190 is a low cost two-stage inrush current limiter designed to protect sensitive electronic components from inrush current. It features a fast response time and adjustable current limit, making it well suited for protection of AC and DC powered devices. The SG190 is an attractive solution for budget-conscious applications, and offers a number of advantages over other approaches to inrush current protection.