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摩托车4123自动进角直(Motorcycle 4123 automatic angle straight)

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摩托车4123自动进角直(Motorcycle 4123 automatic angle straight)摩托车4123自动进角直(Motorcycle 4123 automatic angle straight) 摩托车4123自动进角直(Motorcycle 4123 automatic angle straight) This circuit is composed of five parts, such as oscillator circuit, control circuit, capacitor discharge circuit, advance angle control circuit, tr...

摩托车4123自动进角直(Motorcycle 4123 automatic angle straight)
摩托车4123自动进角直(Motorcycle 4123 automatic angle straight) 摩托车4123自动进角直(Motorcycle 4123 automatic angle straight) This circuit is composed of five parts, such as oscillator circuit, control circuit, capacitor discharge circuit, advance angle control circuit, trigger signal processing circuit and so on. The following describes the composition and function of different circuits Oscillating circuit section It consists of a triode Q1, a resistor R1, a R2, a R3, a R4, a diode D1, a D2, a capacitor C1, a high-frequency transformer (a ferrite core), and a high frequency oscillator with a frequency of about 300KHz. The principle is that the 12V alternating current is rectified through the diode D8 to the oscillator, and the high frequency oscillator generates an AC voltage of about 450 volts. The capacitor C15 is charged to 180V through the high frequency diode D6. control circuit It consists of diode, Q2, resistor R5, R6, R7, rectifier diode D3, D4. Principle; when the Q2 base voltage, Q2 conduction, transformer excitation signal, oscillator, when no voltage Q2 base, as of Q2, the oscillator began working on signal control oscillator has four aspects, (1) control the grounding and suspension of the terminal to control the operation of the igniter The control terminal is transmitted to the emitter of Q2 through R20, D5 and Q3. Principle; when the 12V alternating current through the diode rectifier to the D8 oscillator, R8, D5, R9 base by Q3 divider circuit, the Q3 is switched on, the oscillator signal of pole excitation and oscillator, when the control terminal grounded, by R8, D5, R9 and R20, Q3 new the base of the divider circuit, so as of Q3, oscillator. (2) when the trigger has a pulse signal, the oscillator stops vibration The trigger signal is connected to the 7 pin of the integrated block via R24 and Q7, and reaches the Q2 base via the Q4 through the R11. Principle; when the trigger pulse signal by 7 feet into the FM4213, 10 pin output ignition signal to the thyristor control pole, thyristor and capacitor C15 through high voltage package primary discharge to the ground, then to the output end of the transformer, the output power increases, easy to burn out Q1, so when the trigger pulse signal generated at the same time also, the oscillator oscillation stop. When the trigger signal is zero, the oscillator starts working again, during which the igniter fires once. (3) when the charging voltage of capacitor C15 reaches 180 volts, the oscillator stops vibration The output voltage of the transformer is composed of the output terminal of the transformer, the D3 and the zener diode D4, and the Q2 base, and the resistors R6 and C7 constitute a voltage divider circuit. Principle; when the transformer to charge capacitor C15 to 180 volts, voltage resistance on R7 have increased by more than 7.8 volts, the zener diode D4 conduction, Q2 conduction, oscillator, C15 power D3, R6, R7 and the discharge to the ground when the C15 voltage is less than 180 volts. Reduce the voltage on R7, D4 is not switched on, as of Q2, the working of the oscillator and the transformer to charge the capacitor charging when the C15 reaches 180 volts, oscillator, which can make the oscillator work intermittently. Working time is T/10, to protect Q1 so as not to work continuously and burn. (4) protection of ignitor voltage; The power supply voltage is composed of R8, D5, R9, D11 and R20, and the Q3 voltage divider circuit is composed of the power supply voltage, Principle; when the power supply voltage up to a certain limit, the zener diode D5 conduction, Q3 conduction, oscillator, output voltage without ignition ignition, ignition engine flameout protection, as the power supply voltage continues to rise and burn. Capacitor discharge circuit Principle; oscillator keeps the C15 180V stable voltage, when the 10 feet of FM4213 produces an ignition signal through the R10 to the control electrode of the thyristor, the conduction thyristor C15 through high voltage coil and the SCR package very early discharge to the ground in a high pressure pack secondary generate 20 thousand volts of high voltage to ignite flammable gas in the cylinder of the engine, make the engine work. Advance angle control circuit Composed of FM4213 integrated block and 11, 12, 13, 14 pin peripheral components, Q5, C6, C7, C8, R13, R 14, R 15, R16, R18, and composition, Principle; 11, 12, is the advance angle curve generation circuit; the 13 foot is the speed curve generation circuit; the 14 feet are the internal voltage stabilizing circuit and the low voltage ignition angle locking circuit, The different ignition signals can be output at the 10 pins according to the different lengths of the bosses on the engine magneto, through different combinations of the external elements, corresponding to different lengths of the bosses on the engine magneto. Trigger signal processing circuit Consisting of Q6, Q7, R24, R23, R22, R21, C14, C14, C13,, C12, C11, D10 and D9, The boss in principle; magnet motor through the trigger, the trigger induced two positive and negative sharp pulse signal, the signal processing circuit, shaping a rectangular positive and negative pulse signal, to facilitate the advance angle control circuit for pulse signal processing. The printed circuit board (Figure 1-2) igniter physical map is AX-2, 1/2W, R2, R12 resistance, R3 R4, R6 1/4W and other resistance is 1/8W, The improved circuit, the AC 12V directly with 12V battery power supply, using FM4213 instead of MB4213, eliminating the diode D8, a filter capacitor C10, compensation capacitor C2, other need not to be changed, on the crack Q5, spent two months, did a lot of experiments, to understand the role of Q5 is very large. At the same time to understand the working principle of FM4213 in advance, FM4213 is calculated by the magnetic motor boss with a trigger, the boss from the front and back two trigger pulse interval length, 10 feet output to control the ignition time, if not Q5, the ignition is only applicable to magnetic motor 2cm long trigger boss engine, 11, 12, 13 typical circuit, 14 feet of the resistance and capacitance of the data and the Shanghai Fudan Microelectronics Company to provide exactly the same, only the ignition advance angle range of 25 degrees to 10 degrees in the change, Advance angle speed in the range of 2300 RPM 3600 rpm. With Q5, it can be applied to magneto projection on the 3cm single cylinder engine (such as any single cylinder SUZUKI 125 and YAMAHA 250 series, 250), the output can prolong the ignition time, ignition advance angle can change in the range of 33 degrees to 10 degrees, and the advance speed range increased to 5000 rpm. The DC igniter made with FM4213 has many advantages over the analogue igniter used today, 1, acceleration performance has been improved As stated earlier, the advance angle of 8 degrees ahead, advance speed range increased to 5000 rpm, and at 2300 rpm to 5000 rpm range, the advance angle of uniform output, this makes the domestic motorcycle ignition time more accurately, accelerate smoothly, while reducing oil consumption. 2 、 startup performance has been improved The minimum ignition speed of DC igniter is 150 rpm, the minimum ignition speed than domestic simulated ignition device is 300 rpm low times, the power supply by the igniter, DC power is directly supplied by the battery, ignition energy is strong and stable. While the ignition power is simulated by the ignition coil magnet motor to provide power, only the magnetic motor speed to 300 rpm to provide ignition ignition energy, sufficient battery power loss or so, sometimes sticky oil winter conditions, using an electric motor to start more difficult, especially in the the northern winter, the morning start is women's scooter, many car lady very headache. 3, the magnetic motor can output more power The DC igniter, do not need to install ignition coil magnetic motor, the rest of the space, can install three-phase power generation coil, the output power is 3 times higher than that of the single-phase generator now, the battery is not easy to lose power, life can be greatly prolonged, headlight power can be increased to improve the lighting, increase the night driving safety. All of these advantages can greatly improve the performance of motorcycles in China, and increase the competitiveness of domestic motorcycles in the international market. (of type AX-2; ignition principle Figure 1-1, and printed circuit board components Figure 1-2)
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