| 摘要 |
A control circuit for supplying a relatively constant operating voltage to an electrical load over a relatively wide range of supply line voltages, including an electronic switch connected in series with the electrical load and having a control lead, a reference voltage generating element, and a comparator for receiving the reference voltage and a voltage representative of the actual voltage applied to the electrical load and for generating and electrical signal which is applied to the control lead of the electronic switch.
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