Page 330 - Understanding Automotive Electronics
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                                         AUTOMOTIVE INSTRUMENTATION                                        9





                    Figure 9.18
                    Simplified
                    Vacuum-
                    Fluorescent
                    Display
                    Configuration




                                                         FPO
















                                         photoresistor is a device whose resistance varies in proportion to the amount
                                         of light striking it.
                                              The VFD is likely to be the most widely used instrumentation display for
                                         some time. It operates with relatively low power and operates over a wide
                                         temperature range. The most serious drawback for automotive application is its


                    Figure 9.19
                    Brightness Control
                    Range for Vacuum-
                    Fluorescent Display




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                                         UNDERSTANDING AUTOMOTIVE ELECTRONICS                            317
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