Introduction : a ordinary box game different is good as long as they stay out . you can see more and more clearly exposed the operation of the beautiful game : with the cursor keys up control block in the direction key control box space deformation 一款普通的方块游戏,所不同的是只要玩得好,你就可以越来越清晰的看到暴露的美女游戏操作:用光标键控制放块的方向,空间键控制方块的变形。
The whole system analysis and sub - block design were proceeded to the function requirements . typical sub - blocks were analysed emphatically such as switch capacitor sampling / holding block , brightness control block , oscillator , thermal shut down circuit , ptat and bandgap reference etc . principle and operation of driver circuit are analyzed in the thesis 在电路设计中,结合开关电容采样保持电路、 pwm / linear亮度控制模式以及恒流源驱动等理论给出设计依据,并根据功能需求进行了电路的总体结构设计和子电路设计。
The mixed control chip sg3525a combined with hardware pi controller generates the high - frequency pwm pulse for the first inverter . the digital control block tms320lf2407a mainly provides current preset for constant - current source through the outer filter , pwm pulse for the second inverter and drive signal for the high - frequency pulse power supply 其中变极性电源的一次逆变pwm信号由pwm发生芯片sg3525a ,配以外部硬件电路pi调节器产生;一次逆变闭环控制回路的电流给定(配以外部滤波) 、二次逆变pwm驱动以及高频脉冲电源的控制则由tms320lf2407a数字控制器实现。