Tektronix ps280 user manual

Slot car power supplies. Plating Rectifiers. Anodizing Rectifiers. Power Supply for Charging Lithium Battery. Advanced Search. Home Product Selection Guide. Several of these which I have gone through had obviously had new Op-amp IC's installed. Stan Griffiths retired Tek engineer tells me that the front panel pots are a weak link on these, because if the knobs get hit while you are carrying the supply around, the pot is trashed as a result.

My opinion of this supply is the same as that for certain women - - they look impressive out in the world but when you get them home you start having second thoughts They go forever, have extremely detailed manuals, and if they do break they are really easy to work on. For a filament supply, try the HP A for up to 7.

Even less so for the newer, smaller, switching-mode power supplies-- even the better ones still emit considerable racket across the AM band. There's unlikely to be any ready-made power supply by a big manufacturer that puts out the voltages you need- I generally make one up from scratch-- a small 1-amp variac, a 6 volt filament transformer, a 5-amp schottky bridge, and a 25, uF capacitor make up a nice filament supply good for a couple amps.

Put another 1-amp variac in front of it and you're really set. Put 0. Page 15 If this is lighted, the left variable power supply is producing a constant voltage. Page 16 These buttons select the test mode of the instrument. The PS or PS features two tracking modes: series and parallel.

If both push-button switches are disengaged out , the two variable power supplies operate independently. If the left switch is pushed in, the instrument operates in series mode. Page 17 The red terminal on the right is the positive polarity output terminal. The black terminal on the left is the negative polarity output terminal. Finally, the section includes procedures for using the instrument in both independent and tracking modes and provides examples of a variety of applications.

Page Test Modes You are now ready to power your device. Test Modes The two variable power supplies on your PS or PS can be operated independently of each other, or the slave supply can track the master supply. Below are instructions for operating the instrument in independent modes, followed by instructions for operating the instrument in series or parallel tracking modes. To test a circuit in the independently floating mode, follow these steps: 1.

Determine the polarity of your device. Page 23 4. Plug one of the test leads into the positive output terminal. Plug the other test lead into the negative output terminal. Clip the positive test lead to the positive pole of your device. Page Figure 5: Independent Common Ground-Referenced Application To test a circuit in the independently ground-referenced mode, follow these steps: 1. Connect the outputs as shown in Figure 5.

The display should read 0 V for both variable power supplies. An external meter connected across the load or load terminals should read —5 V. Connect the device or devices to be tested. If necessary, readjust the voltages. Figure 7 shows the configuration for three ground-referenced negative power supplies. Page 32 9. Readjust the voltages if necessary. Connect the outputs as shown in Figure 14 on page Set the PS or PS to parallel tracking mode by pressing both tracking buttons.