What is a constant resistance load?
In Constant Resistance (CR) mode, the electronic load will act like a fixed resistor. It senses the voltage at its input and sinks a current linearly proportional to the input voltage. You might use the constant resistance mode to test the capacity of batteries.
How does a constant current load work?
A constant current load is one which varies its internal resistance to achieve a constant current regardless of the voltage which is being fed to it and therefore the power will vary.
What are constant loads?
Constant power loads (CPL) means that the output power of the convertor is constant, i.e., the output voltage drops when small variations occur in the current value (increasing current amount), which means that when neglecting the dissipated power into the circuit, the output power and input power are equal [22,36].
When would you use a load switch?
Load switches are used to connect and disconnect a load from a source to power up or down, or to save energy when a load isn’t needed. They can also be used to sequence power off-on operations.
Can you parallel electronic loads?
You can also set many electronic loads to regulate constant resistance (CR) across their input terminals. If you need more power dissipated than one load module can do by itself, can you “stack” them? In parallel, certainly.
What is an on-resistance load switch?
The on-resistance of the load switch is a characteristic of the pass FET and will be used in calculating the power dissipated by the load switch. The pass FET can be either an N-channel or P-channel FET, which will determine the architecture of the load switch.
What is active load switching?
1) Active load switching is a technique in which an active component (component capable of amplification and rectification) is used as a load in the circuit. Generally Mosfets are used.
What is constant power source?
A constant-current power supply, on the other hand, is a power supply circuit that controls the output current to a constant level. Constant-current power supplies are used to power LED lighting and charge rechargeable batteries.
What is the on-resistance of load switch?
The on-resistance (RON) of the load switch is a characteristic of the pass FET. The gate driver charges and discharges the gate of the FET in a controlled manner, thereby controlling the rise time (tR) of the device. The control logic is driven by an external logic signal.
What is a load control switch?
Extending the Smart Grid. Load control switches enable consumers and utilities to conveniently manage energy use and to reduce peak demand. They are a fundamental component of Energate’s Interactive Energy Management solution for both one-way and two-way Direct Load Control (DLC) programs being offered by utilities across North America.
What are the key parameters of a load switch?
Several key parameters of a load switch are the ON resistance of the MOSFET that connects between the voltage input and voltage output pins, the current that the transistor can handle, and the voltage that the circuit can handle.
How much impedance does a load switch need to have?
In an ideal world, the load switch must have no impedance when the device is on. In reality, there are numerous components in a load switch that inherently have some electrical resistance which prevent the device from performing with no impedance.