PS505
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The Tektronix PS505 is a 3.0–5.5 V, 4 A power supply plug-in for the TM500 system.
It is designed to operate in the right-hand (high power) compartment of a TM504 or TM506.
In a low-power compartment, a rear switch limits the output to 1 A (indicated by front-panel "NON FLOATING / 1 A LIMIT" LED).
Key Specifications
Output voltage | 3.0 V to 5.5 V DC, floating (only if operated in a high-power compartment) |
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Output current | 4 A (must be limited to 1 A in a low-power compartment); foldback limit from 4.1 A to 1.5 A (latching) |
Overvoltage protection | 7 V |
Line regulation | ±10 mV for 10% line voltage change |
Load regulation | ±5 mV for 0.5 to 4 A load current change, 20 μs transient recovery |
Stability and drift | 0.1% + 5 mV drift in 8 hours; max. 0.01%/°C |
Links
Documents Referencing PS505
Document | Class | Title | Authors | Year | Links |
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070-2088-00.pdf | Book | TM500 Series Rear Interface Data Book | 1975 | AF501 • AM501 • AM502 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DM501 • DM502 • FG501 • FG502 • FG503 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • TG501 | |
070-2088-01.pdf | Book | TM500 Series Rear Interface Data Book | 1976 | AF501 • AM501 • AM502 • AM511 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DD501 • DM501 • DM502 • FG501 • FG502 • FG503 • FG504 • LA501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • SG504 • SW503 • TG501 • TR501 • TR502 |
Internals
The regulator circuit uses one 741 and one 5558 opamp. Reference is a 9 V zener.
Prices
Year | 1975 |
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Catalog Price | $150 |
In 2023 Dollars | $860 |
Pictures
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Front view
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Block diagram
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Schematic
Components
Some Parts Used in the PS505