Dual-level-output circuit for charging generator
AssigneeRobert Bosch GmbH
InventorEdgar Kuhn
Life of this patent
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Abstract
In a circuit (20) for use in controlling a battery-charging process and producing an output (S) which has one of two distinct levels (S1, S2), these levels are independently adjustable by adjusting variable resistors (R1, R2). Switching between the two levels is effected by transistors (T1, T2) in response to a varying input signal (X). The input signal (X) is derived from a hydrogen/oxygen recombinator (40, FIG. 4, not shown) with a thermoelectric transducer which produces an abrupt change in output when the battery is fully-charged. To ensure a gradual switch-over to a lower battery-charging rate, the output of the transducer is passed via an integrator (41) to the circuit (20). The switch means for one of the resistors (R2) may be omitted (FIG. 1 not shown).
Claims8
A battery charging arrangement, comprising a generator (32);
- a voltage controller (31);
- means (40) for producing an output signal (W) which changes relatively abruptly when a battery charge exceeds a predetermined level;
- means (41) for receiving said signal (W) and producing therefrom a linearly changing signal (X);
- further means (10, 20) receiving said signal (X) and having at least two resistors (R1, R2) variable independently from one another and switch means (T;
- T1, T2) connected with said resistors and switching in dependence on the signal (X) and producing the output signal (S) having two adjustable levels (S1 and S2) and supplied to said voltage controller as control voltage.
Dependencies are inferred from the claim text.