1.What is the role of A/B switch? If you are on A, would B still give you a voltage?
The A/B switch allows one to change which channel is being displayed on the information dials. If both channels are set to be independent and have a voltage applied via their voltage control, they will both provide a voltage at the same time, regardless of what position the switch is in. One could set up channel A for one desired voltage, switch to channel B for another desired voltage and then use both voltage sources simultaneously in a circuit application.2.In each channel, there is a current specification (either 0.5 A or 4 A). What does that mean?
The power supply can also regulate the current being provided on its channels. It does so to ensure a constant supply of power.3.Your power supply has two main operation modes for A and B channels; independent and tracking. How do those operation work? (Video)
The independent option allows for both channel A and B to have separate voltages that are not interaction with each other. Changing the mode to tracking, however, will give the option to put the channels in series or parallel. This allows for a greater difference in voltages. In series the unit can output 48V at 0.5 A or in parallel the unit can output 24V at 1A.
4.Can you generate +30 V using a combination of the power supply outputs? How? (Photo)
We are able to generate +30 V by using both A and B outputs in series and having the Positive and Negative leads in the positive and negative input on the power supply
5.Can you generate -30 V using a combination of the power supply outputs? How? (Photo)
In order to get a negative voltage, the positive and negative needs to be switched on the power supply
6.Can you generate +10 V and -10 V at the same time using a combination of the power supply outputs? How? (Photo)
7.Apply 5V to a 100 Ω resistor and measure the current by using the DMM (remember the setup in DC 3). Compare the reading with the current meter reading on the power supply. At what angle of the current knob makes the LED light on? If you keep on decreasing the current limit, what happens to the voltage and current? (Video)
8.Where is the fuse for the power supply? What is it for?
The fuse for the Power Supply is located on the back under the power cord. The fuse is used to prevent any damage to the power supply in case anything would prevent the fuse to blow. If the fuse blows, the LED indicator will not light and the power supply will not operate.
9.Where is the fuse for the DMM? What is it for?
The housing for the fuse on the DMM is located on the back of the meter under the power cord. The correct fuse ratings for the DMM are 250mA fuse for 100Vac or 120Vac is selected, and 125mA fuse for 220Vac or 240Vac is selected.
10.What is the difference between 2W and 4W resistor measurements?
11.How would you measure current that is around 10 A using DMM?
