Power Supplies - Revision history

Bsboggs: /* Digital Power Supply */

2026-01-26T19:58:24Z

Digital Power Supply

← Older revision		Revision as of 19:58, 26 January 2026
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	== Digital Power Supply ==		== Digital Power Supply ==
	This section will cover use of the Rigol DP1308A digital DC Power Supply. First discuss the basic nature of the power supply and then discuss the display modes and several operation modes of the power supply.		This section will cover use of the Rigol DP1308A digital DC Power Supply (or similar). First discuss the basic nature of the power supply and then discuss the display modes and several operation modes of the power supply.

	=== General Digital Power Supply Information ===		=== General Digital Power Supply Information ===

Bsboggs: /* Analog Power Supply */

2026-01-26T19:57:00Z

Analog Power Supply

← Older revision		Revision as of 19:57, 26 January 2026
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	== Analog Power Supply ==		== Analog Power Supply ==
	This section will cover use of the HY3003D-3 analog DC Power Supply. First discuss the basic nature of the power supply and then discuss the three operating modes.		This section will cover use of the HY3003D-3 analog DC Power Supply (or similar). First discuss the basic nature of the power supply and then discuss the three operating modes.

	=== General Analog Power Supply Information ===		=== General Analog Power Supply Information ===

Bsboggs at 01:57, 13 January 2022

2022-01-13T01:57:33Z

← Older revision		Revision as of 01:57, 13 January 2022
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	These power supplies can be operated in a current limited mode in order to protect the load from high currents. This section will describe how to set a current limit before the power supply has been connected to the load.		These power supplies can be operated in a current limited mode in order to protect the load from high currents. This section will describe how to set a current limit before the power supply has been connected to the load.

	With the supply off and nothing connected to the power supply, turn the current control all the way to the max and the voltage control to the minimum. Turn on the power. We want to adjust the adjust the voltage control to the voltage we will be using (or the maximum voltage). At this point set it to 10V. Now connect the positive and negative terminal with a thick banana wire. We can now adjust the current to our desired limit with the current control knob. Set it to 0.3A. Unplug the banana wire and turn the voltage all the way down. Now attach the parallel circuit from the current source section. Start upping the voltage now that the circuit is connected.		With the supply off and nothing connected to the power supply, turn the current control all the way to the max and the voltage control to the minimum. Turn on the power. We want to adjust the adjust the voltage control to the voltage we will be using (or the maximum voltage). At this point set it to 10V. '''Important:''' Turn the current control back to all the way to minimum. Now connect the positive and negative terminal with a thick banana wire. We can now adjust the current to our desired limit with the current control knob. Set it to 0.3A. Unplug the banana wire and turn the voltage all the way down. Now attach the parallel circuit from the current source section. Start upping the voltage now that the circuit is connected.
	<ol>		<ol>
	<li> What happens? Why is this?</li>		<li> What happens? Why is this?</li>

Bsboggs at 18:44, 11 January 2022

2022-01-11T18:44:23Z

← Older revision		Revision as of 18:44, 11 January 2022
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	For this module, you will need:		For this module, you will need:
	<ul>		<ul>
	<li> Rigola DP1308A digital DC Power Supply</li>		<li> Rigola DP1308A digital DC Power Supply (or similar)</li>
	<li> HY3003D-3 analog DC Power Supply</li>		<li> HY3003D-3 analog DC Power Supply (or similar)</li>
	<li> 2 Fluke 179 True RMS multimeters</li>		<li> 2 Fluke 179 True RMS multimeters (or similar)</li>
	<li> An assortment of short wires</li>		<li> An assortment of short wires</li>
	<li> Resistors: 4x100ohm and 1 10kohm</li>		<li> Resistors: 4x100ohm and 1 10kohm (or close values)</li>
	<li> A breadboard (or protoboard) </li>		<li> A breadboard (or protoboard) </li>
	<li> BNC-Banana Plug Adaptor (with male BNC plug)</li>		<li> BNC-Banana Plug Adaptor (with male BNC plug)</li>

Aplstudent: /* Timing mode */

2016-03-04T21:12:27Z

Timing mode

← Older revision		Revision as of 21:12, 4 March 2016
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	[[File:timing.jpg\|400px\|thumb\|right\|Display for timing when first entered.]]		[[File:timing.jpg\|400px\|thumb\|right\|Display for timing when first entered.]]

	With the buttons below the display, you can select which channel you will be modifying. Select +25V. The left side of the display that is currently empty will later show the graphs of the voltage and current as a function of time. The right side is where the values will be set. There are 5 steps that the timing can do. For each step you can set the voltage, current and duration of the step. The ~~left~~ column is used for specialized timing and will not be discussed in this module. If it needs to be used check the user manual for the power supply. The arrows can be used to select which value you are setting. To set a value, the keypad must be used. Once the value is set, it will automatically step to the next box. Input the follow settings:		With the buttons below the display, you can select which channel you will be modifying. Select +25V. The left side of the display that is currently empty will later show the graphs of the voltage and current as a function of time. The right side is where the values will be set. There are 5 steps that the timing can do. For each step you can set the voltage, current and duration of the step. The "Left" column is used for specialized timing and will not be discussed in this module. If it needs to be used check the user manual for the power supply. The arrows can be used to select which value you are setting. To set a value, the keypad must be used. Once the value is set, it will automatically step to the next box. Input the follow settings:
	<ul>		<ul>
	<li> Step 1- 10V, 6A, 20s</li>		<li> Step 1- 10V, 6A, 20s</li>

Aplstudent: /* Digital Power Supply */

2016-03-04T21:07:57Z

Digital Power Supply

← Older revision		Revision as of 21:07, 4 March 2016
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	== Digital Power Supply ==		== Digital Power Supply ==
	This section will cover use of the Rigol DP1308A digital DC Power Supply. First discuss the basic nature of the power supply and then discuss the ~~three operating~~ modes.		This section will cover use of the Rigol DP1308A digital DC Power Supply. First discuss the basic nature of the power supply and then discuss the display modes and several operation modes of the power supply.

	=== General ~~Analog~~ Power Supply Information ===		=== General Digital Power Supply Information ===
	[[File:Digital Power Supply Front.jpg\|400px\|thumb\|right\|Front of a Rigol DP1308A digital power supply]]		[[File:Digital Power Supply Front.jpg\|400px\|thumb\|right\|Front of a Rigol DP1308A digital power supply]]

Aplstudent: /* Display Modes */

2016-03-04T21:07:43Z

Display Modes

← Older revision		Revision as of 21:07, 4 March 2016
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	<li>Is it what you expected?</li>		<li>Is it what you expected?</li>
	</ol>		</ol>
	Depending on your application, some of the channels will remain fixed, while others can be set on a timer and which one you want to watch is important. ~~You will note that in general display mode there is only one data line.~~		Depending on your application, some of the channels will remain fixed, while others can be set on a timer and which one you want to watch is important.
	~~<ol start="8">~~
	~~<li>Which is it displaying: Voltage, current or power?</li>~~
	~~</ol>~~

	Now that you have stepped through the different display settings, you should be able to use the one that is most applicable to your application!		Now that you have stepped through the different display settings, you should be able to use the one that is most applicable to your application!

Aplstudent: /* Front panel controls */

2016-03-04T21:06:07Z

Front panel controls

← Older revision		Revision as of 21:06, 4 March 2016
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	<li> Setting the value directly.</li>		<li> Setting the value directly.</li>
	</ul>		</ul>
	First, we will use the cursor to set it. Select Volt to set the voltage. You will notice a little white box in the lower smaller voltage. The location of the box can be moved using the left and right arrows on the grey dial to the right of the display. The value of the box can be shifted up and down using the up and down arrows. Try setting the voltage to 0.5V and 1A. Remember that to switch to current, you'll need to select it using the display.		First, we will use the cursor to set it. Select Volt below the display to set the voltage. You will notice a little white box in the lower smaller voltage. The location of the box can be moved using the left and right arrows on the grey dial to the right of the display. The value of the box can be shifted up and down using the up and down arrows. Try setting the voltage to 0.5V and 1A. Remember that to switch to current, you'll need to select it using the display.

	Now we use the number pad to set the voltage and current. This is done by typing the value into the keypad, then selecting the units you wish to use. To select the units, you can either use the grey buttons that were used to adjust previously. Or using the buttons below the display. Try setting the voltage back to 6V and current in 5A.		Now we use the number pad to set the voltage and current. This is done by typing the value into the keypad, then selecting the units you wish to use. To select the units, you can either use the grey buttons that were used to adjust previously. Or using the buttons below the display. Try setting the voltage back to 6V and current in 5A.
	<ol start="6">		<ol start="6">
	<li> Do you have to have the current selected to change the current with this method?</li>		<li> Do you have to have the current selected to change the current with this method?</li>
	<li> Which method do you ~~perfer~~ to use?</li>		<li> Which method do you prefer to use?</li>
	</ol>		</ol>

Aplstudent: /* Operating in Series Mode */

2016-03-04T21:02:01Z

Operating in Series Mode

← Older revision		Revision as of 21:02, 4 March 2016
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	<li> Measure the voltage from the positive terminal of the master to the negative terminal of the master, what it is? Does this make sense?</li>		<li> Measure the voltage from the positive terminal of the master to the negative terminal of the master, what it is? Does this make sense?</li>
	<li> Measure the voltage from the positive terminal of the master to the positive terminal of the slave, what it is? Does this make sense?</li>		<li> Measure the voltage from the positive terminal of the master to the positive terminal of the slave, what it is? Does this make sense?</li>
			<li> Measure the voltage from the positive terminal of the master to the negative terminal of the slave, what it is? Does this make sense?</li>
	<li> Measure the voltage from the positive terminal of the slave to the negative terminal of the slave, what it is? Does this make sense?</li>		<li> Measure the voltage from the positive terminal of the slave to the negative terminal of the slave, what it is? Does this make sense?</li>
	</ol>		</ol>
Line 183:		Line 184:

	Turn down the voltage to zero. Now remove the 10kohm resistor from the circuit and replace it with the 4 100 kohm resistors in parallel. Now make the voltage across the resistors 4 volts (2 volts on each display). Adjust the slave voltage knob all the way down and back up. Then do the same with the slave current control.		Turn down the voltage to zero. Now remove the 10kohm resistor from the circuit and replace it with the 4 100 kohm resistors in parallel. Now make the voltage across the resistors 4 volts (2 volts on each display). Adjust the slave voltage knob all the way down and back up. Then do the same with the slave current control.
	<ol start="9">		<ol start="10">
	<li> What happens when the slave voltage is adjusted?</li>		<li> What happens when the slave voltage is adjusted?</li>
	<li> What happens when the slave current is adjusted?</li>		<li> What happens when the slave current is adjusted?</li>
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	</ol>		</ol>
	The master completely controls the voltage in this mode, so the slave voltage control has been disabled. The slave current control can still be used to limit the current, but the master still continues to operate. Make sure the slaves controls are both set to maximum. Now adjust the master current control.		The master completely controls the voltage in this mode, so the slave voltage control has been disabled. The slave current control can still be used to limit the current, but the master still continues to operate. Make sure the slaves controls are both set to maximum. Now adjust the master current control.
	<ol start="12">		<ol start="13">
	<li> What happens when the current control kicks in?</li>		<li> What happens when the current control kicks in?</li>
	</ol>		</ol>

Aplstudent: /* Operating in Series Mode */

2016-03-04T20:58:48Z

Operating in Series Mode

← Older revision		Revision as of 20:58, 4 March 2016
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	With the power off, connect the negative terminal of the slave to one end of a 10kohm resistor and the positive terminal of the master to the other end of the resistor. This will connect across both supplies. Adjust both slave knobs and the master's current control to the maximum value (clockwise) and the master's voltage knob to zero.		With the power off, connect the negative terminal of the slave to one end of a 10kohm resistor and the positive terminal of the master to the other end of the resistor. This will connect across both supplies. Adjust both slave knobs and the master's current control to the maximum value (clockwise) and the master's voltage knob to zero.
	<ol>		<ol>
	<li> Which mode are we operating in?</li>		<li> Which supply mode are we operating in (voltage or current)?</li>
	</ol>		</ol>
	Turn on the power supply. Start adjusting the master voltage and observe the voltage displays.		Turn on the power supply. Start adjusting the master voltage and observe the voltage displays.