联系我们

与泰克代表实时聊天。 工作时间:上午 9:00 - 下午 5:00(太平洋标准时间)。

电话

致电我们

工作时间:上午9:00-下午5:00(太平洋标准时间)

下载

下载手册、产品技术资料、软件等:

下载类型
型号或关键字

反馈

How do I test a SCR for Peak Forward Blocking Voltage on my curve tracer?

问题:

How do I test a SCR for Peak Forward Blocking Voltage on my curve tracer?

答案:

Peak Forward Blocking Voltage - VDRM

What It Is:

With no gate signal applied, peak forward blocking voltage is the maximum voltage that can be applied to the anode without causing theSCR to enter the unblocked (On) state.

On the curve tracer, the Collector Supply drives the anode and the gate is held open.

What The Display Shows:

The display shows anode voltage on the horizontal axis, and the resulting anode current on the vertical axis.  The specification is met when the specified maximum anode voltage can be applied without causing anode current in excess of the specified maximum.
How To Do It:

1. Set controls:

            A: Max Peak Volts to the lowest setting above the specified VDRM

            B: Max Peak Power Watts to the lowest setting that satisfies (IDRM x VDRM)

            C: Horizontal Volts/Div to display VDRM between the 5th and 10th horizontal divisions

            D: Vertical Current/Div to display IDRM between the 5th and 10th vertical divisions                  

            E: Collector Supply Polarity to +DC

            F: Configuration to (Base/Open, Emitter/Common)

            G: Variable Collector Supply to minimum % (full ccw)

            H: DotCursor ON

2. Apply power to the SCR:

            A: Position the Left/Right switch as appropriate

            B: Slowly increase the Variable Collector Supply % until the specified IDRM is attained

3. Compare to data sheet specifications:

            Check that at the specified IDRM, VDRM is greater than or equal to the specified minimum


此常见问题适用于:

无产品系列

产品:

常见问题 ID 52701

查看所有常见问题 »