参数资料
| 型号： | 151-0153 |
| 厂商： | Rabbit Semiconductor |
| 文件页数： | 65/162页 |
| 文件大小： | 0K |
| 描述： | ASSEMBLY - RABBITFLEX CABLES |
| 标准包装： | 1 |
| 系列： | RabbitFLEX™ |
| 附件类型： | 缆线组件 |
| 适用于相关产品： | BL300F |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页当前第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页
5.4 Digital Outputs
There are several types of options available for digital outputs. There are sinking and sourcing drivers, as
well as line drivers. No matter which digital output type you have, the circuit is activated by a call to
flexDigOut() or flexDigOutGroup16() .
5.4.1 Sinking and Sourcing Drivers
One approach to boost the power of DC control signals is to use a sinking output. There are two choices
for sinking outputs on a RabbitFLEX BL300F: a sinking output that can sink up to 1 A and one that can
sink up to 100 mA. Another advantage of a sinking output driver is that it can control large voltage—up to
the rating of the transistor used. The 1 A sinking driver can control up 40 V.
A sinking output uses an NPN transistor. The transistor ’s emitter is connected to ground potential. When
on (the control signal, called the bas e, is high), the output terminal, called the collecto r, is connected to
ground.
Another type of digital output driver is the sourcing output driver. It is the complement of the sinking out-
put and uses a PNP transistor. The emitter is connected to a positive supply. When the transistor is on (a
low voltage on the control signal), the collector is connected to the positive supply.
As with the sinking driver, there are two choices for sourcing outputs on a RabbitFLEX BL300F: a sourc-
ing ouput that can source up to 400 mA and one that can source up to 50 mA.
At first, sourcing drivers seem to make a little more sense than sinking drivers, but they are not as efficient
as sinking drivers. PNP transistors typically do not have current ratings as high as their NPN counterparts.
Sourcing drivers can, however, source current to devices that are connected to negative power supplies.
One way to “see” the difference between sourcing and sinking power is to expand on the water analogy
that is often used to understand the different terms that describe electricity, such as voltage and current.
Using a water tower, Figure 5.2 illustrates that the transistor type used in the sourcing driver is connected
to the power supply (i.e., the water in the tower), thus sourcing power for the attached load when the tran-
sistor ’s control line is activated. The transistor type used in a sinking driver is connected to ground (i.e.,
the water at ground level) thus causing current to flow in the attached load by sinking the current to ground
when the transistor ’s control line is activated.
When selecting a driver, make sure to consider the type of load you will be driving. If driving an inductive
load, such as a relay, solenoid or electric motor, select a driver that has diode protection to prevent burning
out the driver transistor. See Section 5.4.3 for more on protection diodes.
RabbitFLEX User’s Manual
59
相关PDF资料 |
PDF描述 |
|---|---|
| 1515738-1 | INSERT ASSEMBLY 1 CHANNEL |
| 1515739-1 | INSERT ASSEMBLY, 2 X 1310 |
| 1515740-1 | INSERT ASSEMBLY 4 CHANNEL |
| 1515747-1 | INSERT ASSEMBLY 4 CHANNEL |
| 1515867-1 | PROTECTIVE CAP,PLUG CONN. |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 151-01530 | 功能描述:RATCHET P CLAMP SIZE A SOFT INSE 制造商:hellermanntyton 系列:- 零件状态:新产品 配件类型:插件 配套使用产品/相关产品:Ratchet P 夹，6.2mm-13.7mm 捆扎直径 材料:热塑性塑胶（TPE） 特性:- 标准包装:100 |
| 151-01531 | 功能描述:RATCHET P CLAMP SIZE B SOFT INSE 制造商:hellermanntyton 系列:- 零件状态:新产品 配件类型:插件 配套使用产品/相关产品:Ratchet P 夹，13.2mm-19.5mm 捆扎直径 材料:热塑性塑胶（TPE） 特性:- 标准包装:100 |
| 151-01532 | 功能描述:RATCHET P CLAMP SIZE C SOFT INSE 制造商:hellermanntyton 系列:- 零件状态:新产品 配件类型:插件 配套使用产品/相关产品:Ratchet P 夹，19.2mm-36mm 捆扎直径 材料:热塑性塑胶（TPE） 特性:- 标准包装:100 |
| 151-01533 | 功能描述:RATCHET P CLAMP SIZE D SOFT INSE 制造商:hellermanntyton 系列:- 零件状态:新产品 配件类型:插件 配套使用产品/相关产品:Ratchet P 夹，35.1mm-51mm 捆扎直径 材料:热塑性塑胶（TPE） 特性:- 标准包装:100 |
| 151-01554 | 功能描述:WIDE STRAP ADHESIVE MOUNT BLK 制造商:hellermanntyton 系列:* 零件状态:在售 标准包装:3,000 |
发布紧急采购，3分钟左右您将得到回复。