**Building a DC Constant Current/Power Electric Load Hackaday**

28/10/2013 · Measuring the latter allows a constant power load mode (as power = current * voltage). In his article, [Kerry] shows that he can simulate a load of up to 200W. In his article, [Kerry] shows that... The explanation is quite straightforward. With the constant power load if the bus voltage drops then the current increases which further reduces the bus voltage and so on.

**Arduino Constant Current source**

This low-side constant-current source features the MAX1735 and draws 2.5V/R OUT from R LOAD. This circuit also requires that the voltage for R OUT between the IN and GND terminals is minimally 2.5V. As in Figure 1, this circuit requires a minimum voltage of 2.5V between the GND and IN terminals.... A better approach is to use the LT1618 constant-current, constant-voltage converter, which combines a traditional voltage-feedback loop and a unique current-feedback loop to operate as a constant-voltage, constant-current dc/dc converter.

**Constant voltage and constant current controller for**

100ma Current SourceOften in industrial control systems a constant current source is needed, which is controlled by a computer and referenced to circuit ground. The circuit below converts a zero to 5v signal from a computer’s analog output into a current, with a full scale of 100ma. The circuit shown requires a 9v DC supply. . . Circuit by David Johnson P.E.-July, 2008 how to make fresh cranberry sauce without sugar The explanation is quite straightforward. With the constant power load if the bus voltage drops then the current increases which further reduces the bus voltage and so on.

**Constant Power Load Macro Spring 2008 - Spectrum Software**

Glad to see you have arrived on this page to learn how to build a programmable constant direct current dummy load. This load will allow you to draw a set current from any source. This load can also be set to a constant resistance or a constant power. how to open the edge download 6/03/2016 · In the first picture R1 is the load. I1 is the current source. Q1 is the shunt. Normally you would set it up so the shunt element shunts the necessary current to maintain a constant voltage on the load using feedback of some kind.

## How long can it take?

### Ideal Current Source Explained Learning about Electronics

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## How To Make Constant Current Load

16/12/2009 · Another good way to make a constant wattage source is to use an "Arbitrary Behavioral Current Source" (B) with a "Voltage Source" (V). Define a …

- A constant current source is a power generator whose internal resistance is very high compared with the load resistance it is giving power to. Because its internal resistance is so high, it can supply a constant current to a load whose resistance value varies, even over a wide range.
- An ideal current source is a current source that supplies constant current to a circuit despite any other conditions present in the circuit. An ideal current source provides this constant current with 100% efficiency. Thus, if an ideal current source is a 12mA current source, the load will receive
- The battery will have just 80% of a full load current. Instead, you can use the circuit in Figure 1 to produce a constant-current load. Figure 1 A tester of AA- or AAA-sized batteries uses constant-current load.
- 19/01/2009 · If the output voltage of your power supply is 5V its probably regulated, ie almost independed of the load current. Measure the voltage with no current flowing out of the supply and then measure it with 3A flowing to see how much it varies.