产品名称：飞天货车，
Product Name: Flying Truck
工作频率：27.145MHz
Operation Frequency: 27.145MHz
工作原理：
How It Works:
TX:遥控器
TX: Remote Controller
IC U1 是一个由单片机编写成的3功能IC,它与晶体管Q1，Q2和射频发射器电路的其它部分的工作结合起来。该IC引脚6.8.9来控制向前飞行和左右转弯的编码输出，编码有引脚13输入到27.145Mhz的发射电路，由IC 14脚提供一个高电平，给Q2.Y1,C9,L4,产生27.145Mhz的频率，由IC的13脚输出编码由R4引入Q1，R1,C4,C8,进行放大，然后通过C3.L2,L1,天线发射编码到接收器
IC U1 is a 3-function IC coded by a microcontroller. It works together with transistor Q1, Q2, and other parts of the RF transmitter. The IC’s pin 6.8.9 controls the code output of flying forward, turning left, and turning right instructions. The code is output to the 27.145MHz transmitter circuit via pin 13. Pin 14 provides a high level to Q2, Y1, C9 and L4, which generate the 27.145MHz frequency. Pin 13 outputs the code which is fed to Q1, R1, C4, and C8 via R4 for amplification. The code is then transmitted to the receiver via antenna C3, L2, and L1.
天线是使用51cm的拉杆天线。该天线是电感耦合。电池供电是由6个1.5V AA
电池。
The antenna is a 51-cm inductive coupling telescopic antenna. The device is powered by six 1.5V AA batteries.
遥控器开关切换至充电檔位，由U2，R30,R31,组合成充电电路，U2,是一个稳压基准IC,通过Q10.R24,对接收器进行充电。充电电流大约在260mA。
When the remote controller is switched to “charge” position, U2, R30, and R31 will form a charging circuit. U2 is a regulating reference IC, charging the receiver via Q10 and R24. The charging current is 260 mA.
RX:接收器
信号有天线进入，通过C20耦合，由Q3,R13,R12,进行一级放大，通过C4耦合到L1,C2的振荡电路，再经过Q1,C3,L3进行混频，由R2 输入到R3,C8，输入到IC U2,U2是一个两级的运算放大器，经过两级放大后由R7输出，然后输入到U1，U1是一个由单片机编写成的3功能译码IC，由2.5.6脚控制向前飞行和左右转弯功能，其中电路中的Q4, Q5, Q7, Q8, R21, R22, R23, R24,是控制尾部马达风叶左右转动，Q2是控制向前飞行马达转动。Q6 是用于充电保护，防止短路插座CON后造成电池短路。
RX: Receiver
The signal is received by the antenna, coupled by C20, and amplified by Q3, R13, and R12. The signal is then delivered to the L1/C2 oscillation circuit via C4, frequency-mixed by Q1/C3/L3, forwarded to R3 and C8 via R2, and output to IC U2, which is a two-stage operation amplifier. After the two-stage amplification, the signal is output to U1 via R7. IC U1 is a 3-function IC coded by a microcontroller. It’s pin 2.5.6 controls the functions of flying forward, turning left, and turning right. Q4, Q5, Q7, Q8, R21, R22, R23, and R24 control the fan’s left and right turning at the rear of the motor. Q2 controls flying forward motor rotation. Q6 is for charging protection, preventing batteries from short-circuiting.
接收天线是40cm的铜线，该天线是电容耦合。电池供电是一个3.7V的锂电池。
The receiving antenna is a 40-cm capacitor-coupling copper rod. The device is powered by one 3.7V Li-ion battery. |
发表于 2009-9-21 10:20:58
发表于 2009-9-21 10:31:58
楼主
发表于 2009-9-21 15:44:29
发表于 2009-9-23 12:55:41