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Load current monitoring circuitry - uses keying ratio monitoring circuit registering actual current supplied by voltage via control or regulating circuit
Load current monitoring circuitry - uses keying ratio monitoring circuit registering actual current supplied by voltage via control or regulating circuit
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机译:负载电流监控电路-使用键控比监控电路记录通过控制或调节电路由电压提供的实际电流
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摘要
The monitoring circuit (5) registers the actual current (I) by measuring the actual keying ratio (t) of a voltage (U) across the load (2) presenting an impedance. The actual (t) is compared with a predetermined stipulated keying ratio (Signal S) to derive currfent deviations. The monitoring circuit generates a correction value for the relationship between the keying ratio of the voltage (U) and the current (I) value affected by interference values (St). The latter can be delivered by at least a temp. sensor and a potentiometer. Sensors can monitor the temp. (T) of the load and/or the working voltage (UB). USE/ADVANTAGE - The load can be a pressure regulator. Requires no elaborate analogue amplifying circuits.
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