[原创] LTspice Lib 窗口比较器

* this is a windows compare if input voltage
* over the cmp+ voltage output set 5V flag=1
* At flag=1, the voltage is below cmp- output set 0 and flag=0
*         Name      
*           |     Signal input
*           |     |   output state
*           |     |   |   output refernce
*           |     |   |   |    high limit
*           |     |   |   |    |   low limit
*           |     |   |   |    |   |    output revers
.subckt WindowCMP IN OUT GND CMP+ CMP- OUTN
* Subcircuit Body
.model SW_XUTONG SW(Ron=.52 Roff=1Meg Vt=3 Vh=-.5 )
V1 5V GND 5
R1 OUT GND 1K
R2 OUTN 5V 1K
S1 OUTN GND OUT GND SW_XUTONG


.machCMP
*define two state
.state flag1 5
.state flag0 0
*      old    new  
.rule flag1 flag0 V(IN)<V(CMP-)
.rule flag0 flag1 V(IN)>V(CMP+)
.output (OUT) state
.endmachCMP

.ends WindowCMP

用到了状态机写法

LM393是否可以直接用这个模型？

这个只是个模拟状态机，看你用法看看这个波形是否符合你的预期，

如果你要339的话可以去TI官网下载一个