RT9266 million Table 9V Battery Distribution Circuit ----- RT9266 1.5V to 9V Power Converter

RT9266 million Table 9V Battery Distribution Circuit, RT9266 1.5V to 9V Power Converter Keywords: RT9266 million table 9V battery distribution circuit Previously, I have made a multimeter 9V battery for use, with a triode + inductance, the effect is general, it is not electricity in the standby state, and there is no electricity in the standby, and there is a trouble, I don't have to see a lot of friends on the Internet. I want to do such a generation circuit. Today, I have time to do it. However, it is done with the boost chip. There is no specific test circuit efficiency, but it should be better than the circuit that is tied with the triode, and use my own multimeter to do load. When the 1.5V operating voltage, the circuit operating current is 30 mA when the diode gear screen is short-circuited. Since there is no too much multimeter, I don't know the current of the multimeter at 9V, so there is no way to calculate it. efficiency. The circuit is approximately 1.5 mA (1.5V battery power) when no load is loaded. Therefore, it is quite power saving. This circuit can be started normally when the battery voltage is 1V. The principle of circuit is as follows: There is no design switch in the circuit, it is best to do a switch, pick it up in the battery, because this circuit is still 1.5 mA power consumption even in the case where the multimeter is not used. For more information on RT9266, search for the DataSheet of the model. The output voltage is 9V, due to the resistance error, actual 8.9V, can also make the multimeter work normally. PCB welding, although it is a bit ugly, use it, actually does not select 100K and 620k according to the above resistance, but to select 161K and 1M resistance, so that the circuit power is lower. Since there is no suitable resistance, the resistance is connected in series, it is difficult to see, but it can be used. The RT9266 chip is SOT23-6 package, which is small, and pay special attention to 1 foot position when welding. The front surface of the circuit board, very small, compared with 1 yuan coin PCB file, because this file has been done for a long time, actually follow the circuit diagram of the above picture, so you have to adjust it yourself, but the key chip pin is not wrong. The in5819 position in the upper right corner of the figure is canceled, and the components are mounted on the back of the circuit board, and the specific circuit is required for the reference circuit diagram. The following attachment is a PCB file, which is a PDF format, and the circuit board can be made according to the proportion of 1: 1. Multimeter battery distribution circuit PCB.rar This circuit is simple, as long as the wiring is not wrong, the output 9V voltage is no problem, and how to debug it

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