公开(公告)号：US20210153336A1

公开(公告)日：2021-05-20

申请号：US17037269

申请日：2020-09-29

Applicant: CHROMA ATE INC.

Inventor： Chien-Hsing HUANG ,  Chung-Lin LIU ,  Chien-Jiu CHOU

IPC: H05K1/02 ,  H01R12/57

Abstract: An electronic load device includes a main board and a load module. The main board has a plurality of first connecting ports. The load module includes a sub board and a heat-dissipating unit. The sub board has a second connecting port and a pin-hole port. The second connecting port is used for detachably connecting one of the plurality of first connecting ports. The pin-hole port is used for connecting a power component. The heat-dissipating unit has a cylindrical body and a plurality of heat-dissipating fins. The cylindrical body is defined with an outer surface and an inner surface opposite to the outer surface. The plurality of heat-dissipating fins is connected with the outer surface. When the power component is connected to the pin-hole port, the power component contacts the inner surface.

公开(公告)号：US20220206080A1

公开(公告)日：2022-06-30

申请号：US17371976

申请日：2021-07-09

Applicant: CHROMA ATE INC.

Inventor： Wen-Chung CHEN ,  Ming-lng TSOU ,  Chien-Hsing HUANG ,  Chun-Sheng HUNG ,  Kuan-Hung LEE

IPC: G01R31/40 ,  G01R1/20 ,  G01R19/10

Abstract: The present disclosure relates to an electronic load apparatus. An embodiment of the present disclosure includes an electronic load apparatus including: a measurement resistor, a reference circuit, a transistor, and a feedback circuit. The measurement resistor includes a first contact, a second contact, a third contact, and a fourth contact. The first contact and the second contact are located at a first end of the measurement resistor. The third contact and the fourth contact are located at a second end of the measurement resistor. A reference power (or a reference voltage) electrically connects to the reference circuit. The reference circuit and the first contact of the measurement resistor are electrically connected. The transistor includes a drain, a gate, and a source. The reference circuit and the gate of the transistor are electrically connected. One of the source and the drain of the transistor electrically connects to the second contact of the measurement resistor. The other one of the drain and the source of the transistor electrically connects to an output terminal of a unit under test. The feedback circuit and the fourth contact of the measurement resistor are electrically connected. The feedback circuit and the reference circuit are electrically connected.