FIELD: electricity.
SUBSTANCE: in a device of reserve power supply there is the second resistor (8) added, via which a transistor base of a sensor (4) is connected to a positive output of the main power supply source (1), and its emitter-collector transition - between a negative output of the main source (1) and the point of connection of a transistor collector of a key amplifier (5) and a load output (3).
EFFECT: higher reliability of switching from a reserve source to the main one, expansion of functional capabilities.
2 dwg
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|---|---|---|---|
| DEVICE FOR RESERVE POWER SUPPLY | 2011 |
|
RU2446542C1 |
| DEVICE FOR RESERVE POWER SUPPLY | 2011 |
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RU2446543C1 |
| DEVICE FOR RESERVE POWER SUPPLY | 2011 |
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| CONSUMED DC CURRENT STABILIZER WITH COMBINATION PROTECTION | 1996 |
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RU2138844C1 |
| DEVICE TO SWITCH RESERVE POWER SUPPLY SOURCE | 2010 |
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RU2440655C1 |
