these kinds of batteries of laser pointer are not very easy

And at the same time, these kinds of batteries of laser pointer are not very easy or convenient for the customer to get.
This will not only get larger peak voltage, and will avoid the current flowing through the transistor's time is too long while the loss of power can be seen, due to characteristics of the inductor flows through the inductor current to zero, due to the inductor current mutation characteristics, the current will continue to decline (reverse), this time, the voltage across the inductor also began to decline until the point c, the voltage began to reverse, that is to produce a certain shock, but due to the circuit using The half-wave rectifier circuit consisting of two diodes, although the shock current is relatively large, but because of the relationship of the diode D3, to make C-level voltage does not lower than-0.7V can be seen from Figure 3.4 (b). green laser pointer can help the customer fully make use of the five fingers.Especially for the small power type green laser pointer
After point c, the voltage in turn reverse change will reach the state of negative positive at this time because of the diode D2 reverse biased, so it will not impact the final output voltage should be noted here should be selected reverse breakdown voltage of the diode. Figure 3.4 transistor turn-on, the end of the waveform 12 in Figure 3.5 the inductor current curve Of course, when the inductor current reaches the saturation voltage amplification effect as shown in Figure 3.5, the choice of saturation when the inductor current reaches the saturation current of 200mA inductor, we can see. The distance of remote control of green laser pointer is 15m.In recent years, the increasing use of broad, complex programmable logic device manufacturers can now provide a powerful and easy to use design software, can easily use the PC platform design, simulation, and programmable logic devices configuration, you can immediately get the meet the design requirements of the specific features of digital circuits by direct application or testing, do not need to spend huge consumption of manufacturing costs and longer waiting time. Therefore, the programmable logic device is particularly suitable for the circuit functions that require frequent change the 21 animals and need quick access to products and there is no mass production needs of the occasion to pass time delay circuit applications, the most important requirement is that the delay time of each delay unit to try the same. Users must connect the audio signal with the microphone input interface of the power amplifier of green laser pointer .