Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1986-12-15
1987-11-10
Salce, Patrick R.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 35, 320 39, 320 46, H02J 700
Patent
active
047060093
ABSTRACT:
The invention is directed to an electronic switching power supply for the controlled charging of a storage battery (61) with a boost- or trickle-charge current in dependence upon the charge condition of the battery, including a primary-pulsed blocking oscillator type converter in which the primary coil (51) of a transformer (5) is connected in series with a switching transistor (1) while its secondary coil (52) is connected in series with the storage battery (61) and a diode (31). Provided in parallel with the series connection comprising the storage battery (61) and the diode (31) are a capacitor (12) and a further diode (32) connected in series, with a switching arrangement (71) provided in parallel with the capacitor (12) being connected via a decoupling arrangement to the base of a second transistor (2) determining the turn-on period of the first transistor (1). The switching arrangement (7) operates in dependence upon the cell voltage, the cell temperature or the internal gas pressure of the storage battery, causing the electronic switching power supply to switch from a high boost-charge current to a low trickle-charge current.
REFERENCES:
patent: 4441147 (1984-04-01), Schwarz
patent: 4464619 (1984-08-01), Schwarz et al.
patent: 4523139 (1985-06-01), Schwarz et al.
patent: 4614905 (1986-09-01), Peterson et al.
Ault Anita M.
Braun Aktiengesellschaft
De Vellis Raymond J.
Salce Patrick R.
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