POWER CONVERSION SYSTEM, POWER MODULE, AND SEMICONDUCTOR DEVICE
First Claim
Patent Images
1. A power conversion system comprising:
- a high-side circuit and a low-side circuit;
a controller communicating with the high-side circuit and the low-side circuit;
a first coupling circuit including a wire between the controller and the high-side circuit; and
a second coupling circuit including a wire between the controller and the low-side circuit,wherein the high-side circuit includes;
a high-side switch coupled between a first power supply terminal to which a first power supply voltage is supplied using a reference power supply voltage as a reference and a load drive terminal, the high-side switch supplying power to a load via the load drive terminal; and
a high-side driver driving the high-side switch,wherein the low-side circuit includes;
a low-side switch coupled between a reference power supply terminal to which the reference power supply voltage is supplied and the load drive terminal, the low-side switch supplying power to the load via the load drive terminal; and
a low-side driver driving the low-side switch, andwherein the first coupling circuit includes a diode having an anode coupled to the wire from the controller and a cathode coupled to the wire from the high-side circuit.
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Abstract
A power conversion system has a first coupling circuit including a wire between a controller and a high-side circuit and a second coupling circuit including a wire between the controller and a low-side circuit. The first coupling circuit has a diode having an anode coupled to a wire from the controller and a cathode coupled to a wire from the high-side circuit.
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Citations
20 Claims
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1. A power conversion system comprising:
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a high-side circuit and a low-side circuit; a controller communicating with the high-side circuit and the low-side circuit; a first coupling circuit including a wire between the controller and the high-side circuit; and a second coupling circuit including a wire between the controller and the low-side circuit, wherein the high-side circuit includes; a high-side switch coupled between a first power supply terminal to which a first power supply voltage is supplied using a reference power supply voltage as a reference and a load drive terminal, the high-side switch supplying power to a load via the load drive terminal; and a high-side driver driving the high-side switch, wherein the low-side circuit includes; a low-side switch coupled between a reference power supply terminal to which the reference power supply voltage is supplied and the load drive terminal, the low-side switch supplying power to the load via the load drive terminal; and a low-side driver driving the low-side switch, and wherein the first coupling circuit includes a diode having an anode coupled to the wire from the controller and a cathode coupled to the wire from the high-side circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power module configured as a single package, the power module comprising:
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a first power supply terminal to which a first power supply voltage is supplied using a reference power supply voltage as a reference; a reference power supply terminal to which the reference power supply voltage is supplied; a load drive terminal; a high-side circuit and a low-side circuit; a first terminal transmitting or receiving a signal to or from the high-side circuit; a second terminal transmitting or receiving a signal to or from the low-side circuit; a first coupling circuit including a wire between the first terminal and the high-side circuit; and a second coupling circuit including a wire between the second terminal and the low-side circuit, wherein the high-side circuit includes; a high-side transistor coupled between the first power supply terminal and the load drive terminal, the high-side transistor supplying power to a load via the load drive terminal; and a high-side driver driving the high-side transistor, wherein the low-side circuit includes; a low-side transistor coupled between the reference power supply terminal and the load drive terminal, the low-side transistor supplying power to the load via the load drive terminal; and a low-side driver driving the low-side transistor, and wherein the first coupling circuit includes a diode having an anode coupled to the wire from the first terminal and a cathode coupled to the wire from the high-side circuit. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A semiconductor device constituted by a single semiconductor chip, the semiconductor device comprising:
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a load drive terminal coupled to a floating voltage; a reference power supply terminal to which a reference power supply voltage is supplied; a first temperature detection terminal coupled to a first temperature detection diode provided outside the semiconductor device; a termination region in a ring shape; a first region provided inside the termination region, the first region in which a circuit operating at a first power supply voltage using using the floating voltage as a reference is formed; a second region provided outside the termination region, the second region in which a circuit operating at a second power supply voltage using the reference power supply voltage as a reference is formed; a high-side driver formed in the first region, the high-side driver driving a high-side transistor provided outside the semiconductor device; a low-side driver formed in the second region, the low-side driver driving a low-side transistor provided outside the semiconductor device; a first diode formed in the termination region, the first diode having a cathode coupled to the first temperature detection terminal; and a first current source formed in the second region, the first current source coupled to an anode of the first diode. - View Dependent Claims (17, 18, 19, 20)
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Specification