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PS150/CH150 12 V Charging Regulators
1. Introduction
The PS150 is a 12 VDC power supply that includes a rechargeable 7 Ah valve-
regulated lead-acid (VRLA) battery and charging regulator. The CH150 is a
charging regulator for an external rechargeable 12 V VRLA battery such as the
BP12 or BP24 offered by Campbell Scientific. Charging power for these
charging regulators is typically supplied by an unregulated solar panel, AC/AC
transformer, or AC/DC converter.
FIGURE 1-1. PS150
The PS150/CH150 are smart chargers that provide charging with temperature
compensation for optimal charging and battery life. A maximum power point
tracking algorithm is incorporated for solar inputs to maximize available solar
charging resources.
The PS150/CH150 are compatible with the A100 null-modem adapter and the
A105 adapter for additional 12 V output terminals. The A100 Null Modem
Adapter connects and powers two Campbell Scientific peripherals via two
CS I/O 9-pin connectors configured as a null modem. This is useful in linking
different communications technologies; e.g., telephone to radio, at sites that do
not have a data logger. The A105 adapter may be used to provide additional
12 V and ground terminals where the power supply is used to power several
(p. 15)
Additional 12 V Terminals Adapter
(p. 17)
, for more information.
The PS150/CH150 charging regulators are termed series regulators, because
the regulators are placed in series between the charging source and the load. As
batteries become closer to fully charged, series regulators reduce the current
drawn from the charging source, to where the charging source may be
A100/A105
connection
