HONEYWELL CC-PAON01 DCS系统输出模块 CC-IP0101 51410056-175

HONEYWELL CC-PAON01 DCS系统输出模块 CC-IP0101 51410056-175

第一ibm 个人计算机电源装置(PSU)提供两个主电压:+5V和+12 V。它提供另外两个电压，即5 V和12 V，但功率有限。最微芯片在5 V电源下工作。63.5的W这些PSU可以提供，其中大部分在+5 V供电轨上。

+12 V电源主要用于驱动电机，如磁盘驱动器和冷却风扇。随着更多外设的加入，12 V供电轨上的功率也越来越大。然而，由于芯片消耗了大部分功率，因此5 V供电轨仍然提供了大部分功率。12 V供电轨主要用于为提供负电源电压RS-232串行端口。为ISA总线上的外设(如声卡)提供了一个5 V轨，但除了最初的IBM PC主板之外，任何主板都不使用它。

称为“电源良好”的额外导线用于防止数字电路在电源开启的最初几毫秒内工作，此时输出电压和电流正在上升，但还不足以或不稳定地用于正常的设备操作。一旦输出电源准备就绪，电源良好信号将告知数字电路可以开始工作。

用于PC的IBM原装电源(型号5150)，串话/音（cross talk的缩写）和在(某时间或时刻);在(学习或工作地点);在(某处)包括延伸穿过计算机机箱侧面的线电压电源开关。在一个常见的变体中塔在这种情况下，线电压开关用一根短电缆连接到电源，这样就可以把它安装在远离电源的地方。

he first ibm Personal Computer Power Supply Unit (PSU) offers two main voltages :+5V and + 12V. It offers two other voltages, 5 V and 12 V, but the power is limited. Most microchips operate on a 5 V power supply. 63.5 W of these Psus can be supplied, most of which are on the +5 V supply rail.

The +12 V power supply is mainly used to drive motors such as disk drives and cooling fans. With the addition of more peripherals, the power on the 12 V supply rail is also increasing. However, since the chip consumes most of the power, the 5 V supply rail still provides most of the power. The 12 V supply rail is mainly used to provide negative supply voltage to RS-232 serial ports. A 5 V rail was provided for peripherals on the ISA bus, such as sound cards, but it was not used by any motherboards other than the original IBM PC motherboards.

Additional wires called "power good" are used to prevent digital circuits from operating during the first few milliseconds of power on, when the output voltage and current are rising but are not yet sufficient or unstable for normal device operation. Once the output power supply is ready, a good power signal will tell the digital circuit that it is ready to work.