公开(公告)号：US11073852B2

公开(公告)日：2021-07-27

申请号：US17091007

申请日：2020-11-06

Applicant: CHROMA ATE INC.

Inventor： Chun-Sheng Hung ,  Hsiang-Yu Wu ,  Chi-Chiao Cheng ,  Chien-Hsing Huang

IPC: G05F1/46 ,  G01R31/385 ,  G01R1/20

Abstract: An electronic load apparatus is provided and adapted to allow an enhanced driving circuit to be disposed between a voltage-dividing circuit and power components to ensure the driving capability of the power components not coupled to a control circuit to thereby adjust a response voltage quickly, shorten a response time period and thus increase overall response speed, suppress transient voltage variation and thus preclude a signal delay otherwise arising from a load circuit, allow the power components series-connected in an electronic load apparatus to be driven quickly, reduce the risk of damaging the power components, and enhance the stability and reliability of the electronic load apparatus.

公开(公告)号：US20210200251A1

公开(公告)日：2021-07-01

申请号：US17091007

申请日：2020-11-06

Applicant: CHROMA ATE INC.

Inventor： Chun-Sheng Hung ,  Hsiang-Yu Wu ,  Chi-Chiao Cheng ,  Chien-Hsing Huang

IPC: G05F1/46

Abstract: An electronic load apparatus is provided and adapted to allow an enhanced driving circuit to be disposed between a voltage-dividing circuit and power components to ensure the driving capability of the power components not coupled to a control circuit to thereby adjust a response voltage quickly, shorten a response time period and thus increase overall response speed, suppress transient voltage variation and thus preclude a signal delay otherwise arising from a load circuit, allow the power components series-connected in an electronic load apparatus to be driven quickly, reduce the risk of damaging the power components, and enhance the stability and reliability of the electronic load apparatus.

公开(公告)号：US11324109B2

公开(公告)日：2022-05-03

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 ,  H05K7/20 ,  H01L23/367 ,  H01L23/467 ,  H01L23/40

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：US11714139B2

公开(公告)日：2023-08-01

申请号：US17371976

申请日：2021-07-09

Applicant: CHROMA ATE INC.

Inventor： Wen-Chung Chen ,  Ming-Ing Tsou ,  Chien-Hsing Huang ,  Chun-Sheng Hung ,  Kuan-Hung Lee

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

CPC classification number: G01R31/40 ,  G01R1/203 ,  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.