电压比较器

Voltage of 555IC fanout or assistant fanout feeding back to input for voltage apron string,forms deferent DS feedback,and holds threshold voltage inside two comparators to float along with.

把555IC输出端或辅助输出端的电压反馈到电压控制输入端，形成输出的数字信号反馈，使内部2个比较器的阈值电压随之浮动。

The comparator 14 tests whether the voltage is greater or less than the voltage occurring at the inverting input and depending on the results of the comparison the bit corresponding to capacitor Cm is either kept or discarded.

比较器14测试是否电容器Cm的电压大于或者小于在反相输入处出现的电压，并且根据比较结果，保持或者丢弃对应于电容器Cm的位。

The invention discloses a DC/DC circuit, comprising a PWM controller, a current amplifier, a peak current comparator, an error amplifier, a main switch, a synchronous switch and also an operational amplifier. The non inverting input end of the operational amplifier is used for coupling with input voltage or voltage reference, or used for coupling with the input voltage and the voltage reference; the inverting input end of the operational amplifier is used for coupling with the voltage reference or ground, and the output end thereof is connected with the non inverting input end of the error amplifier.

本发明公开了一种DC/DC电路，包括PWM控制器、电流放大器、峰值电流比较器、误差放大器、主开关和同步开关；还增设运算放大器，其同相输入端用于与输入电压或基准电压耦合，或用于同时与输入电压和基准电压耦合；其反相输入端用于与基准电压或地耦合，其输出端与所述误差放大器的同相输入端连接。

Smoke Detection Circuit C The smoke comparator compares the ionization chamber voltage to a voltage derived from a resistor divider across VDD.

烟雾检测电路C的烟雾比较器比较电离室电压从整个VDD的电阻分压器产生一个电压。

The device includes on-chip Hall voltage generator for magnetic sensing, the error amplifier that amplifies the Hall voltage, a comparator that is to provide switching hysteresis for noise rejection, the bi-direction drivers for sinking and driving large current load, and the frequency generator thatprovides a signal proportional to rotation speed.

该器件包括片上大厅为磁场传感，误差放大器，放大的霍尔电压，比较器是提供切换噪音抑制滞后电压发生器，双向驱动的吸收和大电流负载，频率方向司机发电机提供了一个信号，转速成正比。

Ideal for 3V or 5V single-supply applications, these devices operate from a single +2.5V to +11V supply (or 1.25V to 5.5V dual supplies), and each comparators input voltage ranges from the negative supply rail to within 1.3V of the positive supply.

为3V或5V单电源应用的理想选择，这些器件工作于+2.5 V至+11单电源电压（1.25V至5.5V的或双电源），并在为1.3V从负供电轨每个比较器输入电压范围的正电源。

Normal voltage and current comparator circuits face unstable outputs due to the fact that comparator circuits are sensitive to noise.

仿真结果表明，具有滞回功能的比较器相对于简单比较器可以得到更为稳定快速的输出电压和输出电流。

The figure of the digital voltage meter used as a control 89S52 core single chip to achieve the range of hardware automatically switch circuit, and LED display by measuring the voltage, the comparator input voltage polarity detection; reasonable configuration of the system, simple structure,Capable of measuring 0 volts to 200 volts plus or minus voltage, fully meet the requirements of the design.

该数字该数字电压表采用89S52单片机作为控制核心，以硬件电路实现量程自动切换，并用LED显示被测量的电压，采用比较器检测输入电压的极性；该系统配置合理，结构简单，能够测量0伏到正负2000伏的电压，完全满足本设计的要求。

Only need to input hysteresis comparator type (in-phase, RP) and the upper and lower threshold and the comparator voltage comparator can be the external data!

只需要输入迟滞比较器类型和上下门限以及比较器工作电压即可得到比较器外围数据！

The figure of the digital voltage meter used as a control 89C51 single-chip core, hardware-range automatic switching circuit, and LED display by measuring the voltage, the comparator input voltage polarity detection; reasonable configuration of the system, simple structure, can measuring 0 volts to 200 volts plus or minus voltage, fully meet the requirements of the design.

该数字该数字电压表采用89C51单片机作为控制核心，以硬件电路实现量程自动切换，并用LED显示被测量的电压，采用比较器检测输入电压的极性；该系统配置合理，结构简单，能够测量0伏到正负200伏的电压，完全满足本设计的要求。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。